CFD Analysis

Two versions of the CFD ship-motion simulation code named WISDAM-X and WISDAM-XI are described with a number of application examples. Since the non-linear free-surface and body-surface conditions are satisfied exactly on the moving ship body surface in the framework of overlapping grid system (WISDAM-X) or multi-block grid system (WISDAM-XI), both codes cope with arbitrary ship motions in arbitrary wave conditions. The WISDAM-X code is especially used for the design of conventional type ships. The simulation results demonstrate that the computed pressure on the hull surface of the bow-part shows fairly good agreement with the measured data in a wide range of wave conditions. The simulations of the cases in the oblique waves elucidate the formation of unsteady free-surface- shock-wave which plays an important role for the added resistance. The WISDAM-XI code is used for the prediction of hydrodynamic performance of multi-hull vessels. Resistance, seakeeping performance and ride comfort of monohull, catamaran and trimaran vessels is estimated by the CFD simulation in waves from various directions.

In the context of GEN-IV heavy liquid metal-cooled reactors safety studies, the flow blockage in a fuel sub-assembly is considered one of the main issues to be addressed and one of the most important accidents for Lead Fast Reactors (LFR). In order to model the temperature and velocity field inside a wrapped fuel assembly under unblocked and blocked conditions, a detailed experimental campaign as well as 3D thermal hydraulic analyses of the fuel assembly are required. The present paper is focused on the CFD modeling and preliminary computational analysis of the new experimental facility „Blocked‟ Fuel Pin bundle Simulator (BFPS) that will be inserted in the heavy liquid metal NACIE-UP (NAtural CIrculation Experiment-UPgrade) facility located at the ENEA Brasimone Research Center (Italy). The BFPS test section aims to carry out suitable experiments to fully investigate different flow blockage regimes in a 19-pin fuel bundle providing experimental data in support of the development of...

Nuclear power is an economical technology for extenuating environmental alteration and can make a considerable influence to environment safety. A nuclear power plant is a thermal power station having the primary heat source as a nuclear reactor. In the previous work, the study of modelling and analysis of temperature distribution of Moderator in Calandria of Nuclear Reactor was carried out. The study included the complete understanding of the design of Calandria and how moderator carried out the heat from calandria.. The Temperature distribution was validated with actual working conditions. Various factors play a vigorous role in the designing of Calandria and their effect on the Moderator needs to be studied effectively. In the present work, the parametric analysis of moderator is carried out to observe the temperature distribution within the Calandria of Nuclear Reactor.

This research assesses the effect of outdoor parameters, including solar radiation and shading and glazing configurations, on indoor thermal comfort and air quality in multi-purpose halls in Auckland, New Zealand. The Design of experiment (DOE) method by using CFD simulation has
been used for this study. Input parameters are windows length, overhang angle, and overhang length, while output parameters are occupant zone average temperature and mass fraction. The temperature sensitivity to the glazing parameter changes with time, and its maximum occurs at
11:00 and is 95%, while for shading ones happen at 9:00 and is 50%. The peak of CO2 mass fraction sensitivity to glazing and shading parameters coincides at 9:00 and is 90% and 80, respectively. The variation rate of temperature and CO2 mass fraction VS. Glazing parameter (W.L) is approximately positive on the summer day. However, it has nonlinear and complex behavior, while shading one has a sinusoidal behavior. On the other side, On the winter day, the temperature variation rate is almost linear regarding this factor. The result shows that appropriate
shading and glazing situation for each time is different, and for reaching the best comfort, dynamic shading and glazing should be designed. Comfort criteria sensitivity within the school is highly dependent on glazing parameters compared with shading configurations. The temperature can be controlled up to 3 and 1.6 degrees in the summer winter day, respectively. Finally, it can be concluded that glazing tools can compensate for a significant amount of required heating in the winter days, and shading devices and opening windows can control the air quality in the school buildings with neglectable overheating.

In recent years, studies have been conducted to
determine gradients expressing climate conditions inside
greenhouses using computational fluid dynamics, which has
been able to increase the precision and realism. Although
these models provide numerical solution of the energy
balance, these models need to be validated to establish its
accuracy with respect to real data measured by sensors inside
the greenhouse. Many methods have been employed
validation, however at this time, neither limit has been
reported to determine whether a model is acceptable or not.
Bayesian networks are numerical techniques of uncertainty
and heuristic method that could be used as validation CFD
multivariable methods. We validated a Computational Fluid
Dynamic model using a Bayesian Network analysis. BN have
shown the relationships between variables CO2
concentration and humidity with respect to temperature and
it has also been possible to quantify these relationships by
calculating inferences in dependent probability distributions.

Pipes are the most frequently used conduits for the transportation of fluids, both gases and liquids. Many times water supply pipes carry mud or soil along with water and deposited in them. This leads to the fall in pressure drop and change in velocity at the outlet of pipe. The present work deals with computational fluid dynamics analysis of flow through the pipe. The software used for this purpose are GAMBIT and FLUENT. The 3D model of the pipe is designed in GAMBIT and analysis is to be done in FLUENT. The comparison in values of flow parameters is then done between the values of pipe with mud deposition and pipe without deposition. The pressure drop due to deposition of mud is calculated in case of laminar and turbulent flow. Also the plots and contours represent the velocity profiles of laminar and turbulent flow.

The aim of this paper is to consider one of the most traffic-loaded regions of Astana city (Kazakhstan) and to determine the concentration of carbon-monoxide (CO) in the air during the peak hours. CFD analysis based on the SolidWorks-EFD platform was used to simulate the dispersion of contaminants given the estimated emission rates and weather conditions at the crossroad of Bogenbay Batyr and Zhenis Avenues in Astana. Turbulence prediction was based on k-ε model with wall functions. The governing equations were discretized using the finite volume method and a 2nd order spatial scheme. The mesh verification was based on 1% convergence criterion for a 50% of mesh density increment; air pressure near the wall of a selected building was chosen as the parameter to control the convergence. Numerical results are presented for prevailing conditions during all 4 seasons of the year, demonstrating that the highest levels of CO are recorded in summer and reach the values up to 11.2 ppm which a...

Nanofluids are liquid/solid suspensions with higher thermal conductivity, compared to common working fluids. In recent years, the application of these fluids in electronic cooling systems seems prospective. In the present study, the laminar mixed convection heat transfer of different water-copper nanofluids through an inclined ribbed microchannel-as a common electronic cooling system in industry-was investigated numerically, using a finite volume method. The middle section of microchannel's right wall was ribbed, and at a higher temperature compared to entrance fluid. The modeling was carried out for Reynolds number of 50, Richardson numbers from 0.1 to 10, inclination angles ranging from 0° to 90°, and nanoparticles' volume fractions of 0.0-0.04. The influences of nanoparticle volume concentration, inclination angle, buoyancy and shear forces, and rib's shape on the hydraulics and thermal behavior of nanofluid flow were studied. The results were portrayed in terms of pressure, temperature, coefficient of friction, and Nusselt number profiles as well as streamlines and isotherm contours. The model validation was found to be in excellent accords with experimental and numerical results from other previous studies. The results indicated that at low Reynolds' flows, the gravity has effects on the heat transfer and fluid phenomena considerably; similarly, with inclination angle and nanoparticle volume fraction, the heat transfer is enhanced by increasing the Richardson number, but resulting in a less value of friction coefficient. The results also represented that for specific Reynolds (Re) and Richardson (Ri) numbers, heat transfer and pressure drop augmented by increasing the inclination angle or volume fraction of nanoparticles. With regard to the coefficient of friction, its value decreased by adding less nanoparticles to the fluid or by increasing the inclination angle of the microchannel.

The single dielectric barrier discharge plasma actuators (PAs) are known to be effective for flow control process. This study investigated the winglet-type thin and small PAs, which were suspended in the quiescent air flow. We conducted the PIV measurements and flow computations for the PA induced flow. The induced flow was discussed on three regions: a sink-like flow to the electrode, a shear flow over the winglet surface, and a jet-like flow downstream from the winglet. When the electrode
was located at the leading edge of the winglet PA, the sink-like flow was effectively enhanced. On the other hand, when the electrode was located at the trailing edge, the friction loss was minimized for the near-wall high shear flow over the winglet, and thus the highest momentum integral was obtained for the downstream jet-like flow. From these results, the most effective flow actuation was suggested to be achieved by the short winglet that had the exposed electrode at a leading edge and the covered
electrode at a trailing edge.

The paper presents a modeling approach related to High Velocity Oxygen-Fuel (HVOF), and similar spraying processes based on combustion. The model and related software allow analysis of temperature and velocity distributions of combustion products and spraying particles inside an HVOF torch as well as downstream of a barrel exit. Interaction of the two-phase spray jet and a substrate is a part of the model too. The main input parameters are the following: type of a fuel, fuel and oxygen flow rates, the torch thermal efficiency, throat diameter, barrel length and diameter, geometry of the expansion, position and diameter of powder injectors, composition and size of the spraying particles, and spraying distance.. A capability of the software is illustrated by the results of calculations regarding the influence of some of the main input parameters on particle temperature and velocity. The results of the modeling are in a good agreement with the published experimental data. The modeling has been successfully used for a modification of a HVOF torch and an improvement of its performance.

The data presented in this article were the basis for the study reported in the research articles entitled 'A validated design methodology for a closed loop subsonic wind tunnel' (Calautit et al., 2014) [1], which presented a systematic investigation into the design, simulation and analysis of flow parameters in a wind tunnel using Computational Fluid Dynamics (CFD). The authors evaluated the accuracy of replicating the flow characteristics for which the wind tunnel was designed using numerical simulation. Here, we detail the numerical and experimental setup for the analysis of the closed-loop subsonic wind tunnel with an empty test section.

Flettner Rotors (FR) are spinning cylinders, which produce fluid dynamic lift by using the Magnus Effect. The Magnus force can be much greater in magnitude than the wing lifting force, given the same projected area and dynamic air pressure. The FR was used for ship's propulsion system in the 1920's. Nowadays, the FR is being seriously examined due to the necessity of renewable resources use. Since several months, the Dipartimento di Ingegneria Industriale of the Università degli Studi di Napoli "Federico II" has started a research about preliminary analysis for marine application of FR through Unsteady Reynolds Average Navier Stokes (U-RANS) simulations for 3D flow past a full-scale rotating [1]. The aerodynamic forces, Lift (L), Drag (D) and Aerodynamic Efficiency (L/D) of a FR are the response variables and are influenced by the following control factors:  Spin Ratio (SR), i.e. the ratio of circumferential-cylinder-velocity-to-free streamvelocity;  Aspect Ratio (AR), i.e. the ratio between the cylinder length and diameter;  Endplate Ratio (De/D 0), i.e. ratio between the endplates diameter and cylinder diameter; In this work, a preliminary assessment of numerical setup has been conducted by comparison with experimental investigation carried out by Badalamenti and Prince at City University of London and published in [2], [3]. The tested cylinder has AR = 5.1, D 0 = 0.0889 m, De/D 0 = 2. A statistical approach based on Design of Experiment (DoE) has been applied to the testing program of FR in order to evaluate the functional relationship and the interaction between the control factors SR, AR and De/D 0 which influence the response variables L, D and L/D. All tests are developed through U-RANS simulations for 3D flow past rotating cylinder. The U-RANS simulations have been performed by using the commercially available flow simulation software CD-Adapco STAR CCM+ v. 9.06.009.

The overall purpose of this study is to critically analyze one of the important areas of Computational Fluid Dynamics i.e. the Linear Convection Problem. There had been, quite a significant research in this field. The main issue that is faced while numerically solving this problem whether in 1D,2D or 3D is the oscillation or diffusion which eventually makes the solution unstable. Hence, my study will deal with this in details and I had also incorporated the effect of mesh size and time step size on the solution and how they affect the stability individually. I had opted for Upwind Scheme to numerically solve this problem and to comment on the factor (CFL No.) which affects the stability. I had also derived the optimum condition for the CFL No., and the simulation results of the proposed scheme are also shown in this paper. KeywordsLinear Convection, oscillation, mesh size, time step size, Upwind Scheme, CFL No.

Increasing propulsion efficiency, safety, comfort and operability are of the great importance, especially for small ships operating on windy sites like the North Sea and the Baltic Sea. Seakeeping performance of ships and offshore structures can be analysed by different methods and the one that is becoming increasingly important is CFD RANS. The recent development of simulation techniques together with rising HPC accessibility enables performance of advanced seakeeping simulations for ships in a full scale. The paper presents CFD seakeeping analysis for a case study vessel in two variants: V-shaped bulbous bow hull form (as built) and innovative hull form (X-bow type). The study presents the influence of redesigning the ship on selected seakeeping aspects. The advanced CFD model, with the application of overset mesh technique, was described in detail. Selected numerical results were validated on the basis of experimental testing in a towing tank and showed good agreement. The approach demonstrated here of performing the CFD seakeeping simulations for the analysis of ship performance in a full scale and close to real loading conditions has direct application to the design process as well as in determination of optimal operational parameters of any ship.

In recent years, the IMO has introduced new regulations to reduce the negative impact of ships on the natural environment. A particularly important step forcing technological innovations is the increasing requirement of ship energy efficiency. It is expressed by the Energy Efficiency Design Index (EEDI). Another important step towards green shipping is raising the required quality of fuel used for propulsion, the so-called Tier limits. Higher demand of Low Sulfur Fuel Oil resulted in its price rising up by 200% in the past two years. All these aspects increase the importance of ship fuel economy. As a result, the hull resistance reduction plays a significant role in the design process of new vessels. For vessels operating at sites with moderate and rough waves, the shape of the hull and, in particular, the bow section plays an important role. The paper presents results of some of the research carried out as a part of the "Smart Propulsion System" research project. The pres...

I have used the Upwind Scheme to solve the Linear Convection Equation. I have emphasized on the CFL condition for stability of the numerical scheme. As a part of this paper, I have also proved the findings of my simulation by calculating the CFL condition analytically.

Commercial wind towers are passive ventilation technology based on traditional wind towers of the Middle East. Typical operation of wind towers in cold-mild climates is generally limited to summer-seasons as the outdoor air is too cold to be introduced into spaces for the majority of the year. In addition, the use of natural ventilation solutions has been seen to increase heat loss in buildings and lead to increased energy cost. Wind towers are normally shut down for the sake of avoiding indoor heating energy losses during winter months. Consequently, the concentration of pollutants has seen to rise above the guideline levels, which can lead to ill health. To improve the year-round capabilities of wind towers, a heat recovery system utilising the combination of heat pipes and heat sink was incorporated into a multi-directional wind tower. This study investigates the potential of this concept through the use of numerical analysis and wind tunnel experiments for validation. The findings showed that the wind tower with heat pipes was capable of meeting the required ventilation rates above an inlet air velocity of 1 m/s. In addition to sufficient ventilation, the integration of heat pipes had a positive effect on thermal performance of the wind tower; it raised the supply air by up to 4.5 K. The technology presented here is subject to a patent application (PCT/GB2014/052263).

Linear aerospike nozzles are studied here, as a possible device to improve launcher engine performance. The main property of these nozzles is the possibility of good integration with vehicle. To improve the knowledge of flow-field and spike pressure distribution a 3-D aerospike nozzle is studied numerically and experimentally at atmospheric conditions and by varying chamber conditions. The spike plate pressure variation is measured by attaching pressure sensors at four different points of the plate and is compared with CFD results.

— In this article detail review in the area of heat transfer and fluid flow across wavy channel and surface has been presented. The wavy channel and surface have significant application in automotive sector, industries, and many more. The purpose of using wavy channel or surface instead of using straight channel, the wavy channel has more surface area as compared to straight channel due to which mass and momentum during heat transfer increases. Conventionally, during fluid flow turbulent flow is preferred which helps in enhancing the heat transfer rate. Several researches perform numerical-computation simulations and experimentation in order to explore the flow characteristics over wavy surfaces are presented in this paper.

Inert gas shrouding in a tundish can result in the formation of a tundish open eye due to the presence of reversed flows on the upper surface of the tundish. Prolonged presence of open eyes promotes reoxidation of liquid steel and creates harmful inclusions, which can ultimately result in clogging of SENs. In the present study, the impact of open eye size and duration on harmful inclusion formation in the tundish of ArcelorMittal Dofasco’s No. 1CC has been analyzed using a comprehensive quantitative approach encompassing mathematical modeling, thermodynamic calculations, and observations at No. 1CC tundish. Validation work carried out using ASPEX inclusion analysis shows that the major inclusions formed include Al2O3 and Ti-Aluminates.

With depletion of fossil fuels, the biomass can be used as an alternative source of energy which is efficient and aides in proper utilization of waste. The energy from biomass can be extracted using biomass gasification reactor. The recent research uses CFD to analyse the thermal performance of a horizontal biomass gasification reactor. The biomass gasification reactor CAD model is analysed using ANSYS CFX and developed in software of Creo design. The temperature, enthalpy and mass fraction are determined. The analysis is conducted using model of eddy dissipation and finite rate chemistry. Results have shown significant difference in enthalpy generation and temperature with the use of different combustion models.

I n this paper, we perform 3D numerical simulations to understand the thermal operation of a high-current-load DC Magnetic Contactor (MC) within a Li-ion battery pack. The main focus is on evaluating the thermal behavior of an electronically controlled MC through a parametric study that investigates the effect of the magnitude of electric current with the corresponding Ohmic heat generation of the MC. For the numerical analysis we perform time-accurate, conjugate heat transfer-based 3D CFD simulations on high spatial resolution grids with commercial CFD software STAR-CCM+. The results of the numerical simulations with temperature dependent material properties are validated against experimental temperature measurements at various locations on the outer body of the MC. The spatial distribution of temperature, and current within the MC and its connected components are also computed for various input parameter values to evaluate a range of its operational validity within an automotive Li-ion battery pack.

In this paper the results of a CFD investigation for a push-pull local ventilation system are presented. The velocity field and the capture efficiency prediction are investigated for different system arrangements. The analysis is carried out for systems respectively with and without fluid-dynamic obstacle in the working plane and for dust pollutants with particle diameters ranging from 1.0 to 100 μm and emission velocities between 1.0 and 7.0 m/s. The analysis, carried out using the commercial code FLUENT, shows that the system performances are dependent on operating conditions and are influenced by the presence of the above-mentioned obstacle on the working plane. In the case of working plane emission without obstacle the system capture efficiency is in general very low never exceeding 25%. Higher efficiencies are instead achieved for particle emission from a vessel placed in the system's working plane centre. In this case even unitary peak efficiencies are reached for particular operating conditions.

The objective of this paper is to model and simulate a wing powered with a distributed propulsion system at both take-off and cruise conditions. The thesis demonstrates the advantages of Distributed Electric Propulsion (DEP) by studying the flow around a wing. MATLAB was used to generate the wing external dimensions using the wing design parameters (aspect ratio, taper ratio, twist angle). The modelling of the wing was performed using ANSYS Workbench and the one of the high-lift propellers (HPs) and Tip Propeller (TP) in SolidWorks before importing the propellers from SolidWorks to ANSYS and attaching them at the front of the leading edge of the wing at equal distances. The propellers in this thesis are designed using the blade radius with constant twist angle from root to tip using the information collected through a literature review, as the optimization of the propellers alone is not the main focus of this project. The project scope is only limited to the way through which they are utilized in a configuration that improves the wing aerodynamic performance. After creating the meshes and applying the required setups, four simulations where conducted in this project through a step by step analysis that first started with a simulation of the wing alone. After adding the propellers, the wing with all HPs and TP was simulated in deployed stationary configuration at take-off conditions. The lift value increased and the drag decreased as a result of this improvement. Once more, the wing with the same configuration was simulated by assigning rotational velocities to the propellers. The results showed a great improvement in the lift and drag values. A last simulation was performed at cruise conditions where all the HPs were folded in the nacelles and the wing was simulated with the TP being in stationary configuration. Additional simulations were later performed to improve the reliability from the results obtained after each of the simulations. Moreover, the plots of the pressure, velocity and streamlines provided relevant information about the aerodynamic interference between the wing and the propellers. The slipstreams created by the propellers and their effects on the wing were also discussed. The results concluded that significant aerodynamic improvements can be achieved in DEP Technology by installing a propeller at the wingtip and HPs at the leading edge of the wing at appropriate locations.

— In axial flow compressors, spacing between the rotor and stator is an important parameter and plays a vital role in the performance characteristics. This parameter determines the compressor pressure ratio of the corresponding compressor. A study has been carried out to verify and explain the effect of axial spacing on the performance of 6.52 pressure ratio multi stage transonic compressor stage through CFD analysis using ANSYS FLUENT. Standard k-ε realizable turbulence model with standard wall function is used for analysis. Reynolds Averaged Navier-Stokes equations are discretized with finite volume approximations using hybrid grids. First the analysis was carried out for 31.5mm increase in axial gap and further the same amount was reduced and best operating conditions showed for the axial spacing +/-between the rotor and the stator. CFD values which were obtained were compared with the numerical values and validated. CFD analysis was carried out. This study showed good agreement with increase in axial spacing between the rotor and stator which increased the performance at the same time reducing the losses in the axial flow compressor.

Nanofluids are the new developed thermal fluids with enhanced thermophysical properties which can improve heat transfer performance of various applications. By introducing nanoparticles with high thermal conductivity in the car radiator coolant can enhance the effective thermal conductivity of coolant which improves the performance of cooling system. Alumina, silica and copper oxide nanoparticles with ethylene glycol-water mixture (60:40) have been used in 3-dimentional car radiator simulations to study fluid flow patterns and heat transfer performance. Heat transfer performance for ethylene glycol-water mixture based nanofluids at different nanoparticle concentrations has been studied. Heat transfer coefficients are determined by numerical simulations with varying coolant velocities. Overall heat transfer performance is found to be improved using nanofluids with high effective thermal conductivity. Results display significant increase in heat transfer performance of coolant in car radiator with an increase in the particle loading.

The need for fuel efficiency is a rapidly increasing trend in automotive industries in the recent years. Therefore, extensive research is undergoing for development of aerodynamically optimised vehicle designs. The drag coefficient is an important factor that determines the fuel efficiency of a vehicle in close proximity to the ground. The primary objective of the paper is to study the effects of fluid flow and the effective drag of the vehicle over a 3D standard car (Chevrolet Beat) with attached rear-plate by using CFD simulation. A 1:10 scale model of the actual vehicle was designed in CAD package CATIA V5 R20. CFD analysis was done over the scaled model keeping conditions as close as possible to the actual road conditions. For evaluation, optimization, the Reynolds-Averaged Navier-Stokes (RANS) equations with Realizable k-ε turbulence model was used over commercial package ANSYS 14, FLUENT CFD Solver. The effect of aerodynamic drag is significant only at higher velocities. Therefore, the simulation was done for vehicle's speed 100 kmph and the results were compared with scaled base vehicle. Various velocity, pressure, streamline contours and velocity plots were examined and analyzed at rear part of the vehicle. It was concluded that, the Cd of the vehicle with attached rear plate went down by 7.72%.

In present study, plastic wastes (polyethylene) were used for the Pyrolysis to get fuel oil that has the same physical properties as the fuel used in aviation industry. The experiment was carried out in two ways, first, thermal Pyrolysis (without the aid of a catalyst) and second, catalytic Pyrolysis (with the aid of a catalyst). The catalyst used for the experiment is Zeolite and silica-alumina in proportion of 1:1. Pyrolysis runs without oxygen and in high temperature of about 500 0 C, which is why a reactor was constructed for the reaction and a furnace designed to provide the required temperature. This study shows that the Pyrolysis of polyethylene requires a temperature of about 550 o C and catalyst to waste ratio of 1:10 for it to yield the highest quantity of hydrocarbon. This study also involves the complete Design and Analysis of the Furnace. Various types of analysis like CFD Analysis, Thermal Analysis and Structural analysis were carried out for the Furnace and delivery Pipe of the thermo-fuel experimental setup. This Study focuses completely on the Design, Analysis and Production of Waste Plastic Fuel.

This paper illustrates the scenario of fluid flow characteristics for the flow over a propeller used in vertical takeoff and landing (VTOL) radio controlled (RC) aircrafts. Simulation investigation has been conducted through SolidWorks flow simulation using a propeller model. Whenever air flows over the propeller, due to the rotational motion a thrust force is generated which will lift the aircraft in the air. This thrust force is important in selecting the motor to be used in the aircraft model. Thrust force along with pressure, velocity, temperature distribution and velocity flow trajectory were determined numerically. These parameters imply the feasibility of using the propeller, consequently selecting the proper power source in order to get a rigid and stable flight of the aircraft.

Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy commonly originates from a motor or electric engine. The liquid enters the direct impeller along or close to the pivoting hub and is quickened by the impeller, streaming radically outward into a diffuser or volute chamber (packaging), from where it exits. Basic uses incorporate water, sewage, oil and petrochemical pumping; an outward fan is normally used to actualize a vacuum cleaner. The capacity of the outward pump is a water turbine changing over potential energy of water weight into mechanical rotational energy. The purpose of this paper is to identify /observe and determine the pattern of velocity profile and pressure distribution by using CFD solid works simulation module by using non Newtonian fluids, such as olive oil, and slurry after the 3D design and modeling of the pump is made using solid works 2016 software. Basically, this paper revolves around the idea of investigating the effect and distribution of velocity profile and pressure within a pump by using water and non-Newtonian fluids.

- Nowadays, simulations through CFD technique is incorporated much earlier in the development stage of an automotive headlamp. Thereby, the automotive industries are able to produce an innovative and creative design with an enhanced performance standard within a reasonable time. The process of physical testing and its validation is available late in the development stage and are also very costly to be performed. Therefore, it is of great significance to simulate the risks during the design phase of the headlamp and henceforth, reduce the cost involved by carrying out proper thermal management studies through numerical analysis and simulations. The present study carries out an experimental analysis on a spherical automotive headlamp to determine the thermal characteristics and behaviour. Numerical analysis done through CFD technique is utilized to validate the experimental results. Thereby, showcase a simulation strategy using CFD methodology to determine the airflow and temperature distributions within a headlamp design. The methodology presents a fair agreement with the experimental and numerical analysis results

The biomedical research with the aid of CFD software is still emerging which incorporated the physiology and pathophysiology of cardiovascular system and respiratory system through simulation. Various researches of simulation and clinical results had been studied, particularly the analyses of blood flow and nasal airflow. In most researches, the blood flow analysis studied the circulation of blood of ventricle function, coronary artery and heart valves. Meanwhile, the nasal airflow analysis studied the basic airflow in human nose, drug delivery improvement and virtual surgery

To study different research papers related to thermal analysis of extended surfaces or projections of materials on the system (engine) called fins of air cooled IC engines. The fins are used to increase the heat transfer rate from the system to the surrounding by increasing the heat transfer area. Fins are used to cool various structures via the process of convection. Generally heat transfer by fins is basically limited by the design of the system. The heat transfer effect may be varied by changing material of different thermal conductivities, improvising engine geometry, increasing cross section area of fins, using perforations on fin and on CFD analysis of fins. Hence the aim of this paper is to study from different literature surveys that how heat transfer through extended surfaces and the heat transfer coefficient affected by changing cross-section this study is useful to know the better geometry and material for the fins for better engine cooling.

A pump is device which works on the principle of transferring the fluid at different h eads as per requirement. The attention is focused on improvement of efficiencies, particularly the pressure, hydraulic efficiency and volumetric efficiency, of the water type centrifugal pump by modifying the impeller blade angles and its effects on the different performance parameters. The v6 water type centrifugal pump has been selected as a reference pump and its CFD & Analytical analysis is carried out then its impeller blade angle has been varied in a steps and the effects of the variation of the impeller blade angle is observed for various angles on the pressure, volumetric and hydraulic
efficiencies of the pump and its validation has been shown by analytical and CFD analysis. The modification result has
been checked by CFD analysis in ANSYS CFX Software.

To study different research papers related to thermal analysis of extended surfaces or projections of materials on the system (engine) called fins of air cooled IC engines. The fins are used to increase the heat transfer rate from the system to the surrounding by increasing the heat transfer area. Fins are used to cool various structures via the process of convection. Generally heat transfer by fins is basically limited by the design of the system. The heat transfer effect may be varied by changing material of different thermal conductivities, improvising engine geometry, increasing cross section area of fins, using perforations on fin and on CFD analysis of fins. Hence the aim of this paper is to study from different literature surveys that how heat transfer through extended surfaces and the heat transfer coefficient affected by changing cross-section this study is useful to know the better geometry and material for the fins for better engine cooling.

This study presents the results of computational numerical analysis of air flow and heat transfer in a light
weight automobile engine, considering three different morphology pin fins. A numerical study using Ansys
fluent® (Version 6.3.26) was conducted to find the optimum pin shape based on minimum pressure drop
and maximizing the heat transfer across the Automobile engine body. The results indicate that the drop
shaped pin fins show improved results on the basis of heat transfer and pressure drop by comparing other
fins. The reason behind the improvement in heat transfer by drop shape pin fin was increased wetted
surface area and delay in thermal flow separation from drop shape pin fin.