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    SolidWorks Flow Simulation 2020 Black Book
    SolidWorks Flow Simulation 2020 Black Book
    SolidWorks Flow Simulation 2020 Black Book
    Ebook481 pages2 hours

    SolidWorks Flow Simulation 2020 Black Book

    By Gaurav Verma and Matt Weber

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    About this ebook

    The SolidWorks Flow Simulation 2020 Black Book is the 3rd edition of our series on SolidWorks Flow Simulation. The book is targeted for beginners of SolidWorks Flow Simulation. This book covers the basic equations and terms of Fluid Dynamics theory. The book covers all the major tools of Flow Simulation modules like Fluid Flow, Thermal Fluid Flow, and Electronic Cooling modules. A chapter on basic concepts of CFD has been added in this edition. This book can be used as supplement to Fluid Dynamics course if your subject requires the application of Software for solving real-world problems. Some of the salient features of this book are:

    In-Depth explanation of concepts

    Every new topic of this book starts with the explanation of the basic concepts. In this way, the user becomes capable of relating the things with real world.

    Topics Covered

    Every chapter starts with a list of topics being covered in that chapter. In this way, the user can easy find the topic of his/her interest easily.

    Instruction through illustration

    The instructions to perform any action are provided by maximum number of illustrations so that the user can perform the actions discussed in the book easily and effectively. There are about 450 illustrations that make the learning process effective.

    Tutorial point of view

    At the end of concept's explanation, the tutorial make the understanding of users firm and long lasting. Almost each chapter of the book has tutorials that are real world projects. Moreover, most of the tools in this book are discussed in the form of tutorials.

    Project

    Free projects and exercises are provided to students for practicing.

    For Faculty

    If you are a faculty member, then you can ask for video tutorials on any of the topic, exercise, tutorial, or concept.

    LanguageEnglish
    PublisherCADCAMCAE Works
    Release dateDec 4, 2019
    ISBN9781393181507
    SolidWorks Flow Simulation 2020 Black Book
    Author

    Gaurav Verma

    Gaurav Verma is currently a Full Professor at the Panjab University, Chandigarh, India (Dr. SS Bhatnagar University Institute of Chemical Engineering and Technology, and Adjunct Faculty at the Department of Nanoscience and Nanotechnology). He is a former CV Raman Post-Doctoral fellow from the Department of Chemical Engineering, Massachusetts Institute of Technology (MIT), USA. His research focuses on the areas of applied nanoscience and nanostructured materials.

    Read more from Gaurav Verma

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      Un excelente libro todo bien escrito. Cada capitulo es explicado paso a paso a traves de ejercicios.

    Book preview

    SolidWorks Flow Simulation 2020 Black Book - Gaurav Verma

    SolidWorks_Flow_cover_2020_colored.jpg

    SolidWorks Flow

    Simulation 2020 Black Book

    By

    Gaurav Verma

    Matt Weber

    (CADCAMCAE Works)

    Edited by

    Kristen

    Published by CADCAMCAE WORKS, USA. Copyright © 2019. All rights reserved. No part of this publication may be reproduced or distributed in any form or by any means, or stored in the database or retrieval system without the prior permission of CADCADCAE WORKS. To get the permissions, contact at [email protected]

    ISBN # 978-1-988722-78-8

    NOTICE TO THE READER

    Publisher does not warrant or guarantee any of the products described in the text or perform any independent analysis in connection with any of the product information contained in the text. Publisher does not assume, and expressly disclaims, any obligation to obtain and include information other than that provided to it by the manufacturer.

    The reader is expressly warned to consider and adopt all safety precautions that might be indicated by the activities herein and to avoid all potential hazards. By following the instructions contained herein, the reader willingly assumes all risks in connection with such instructions.

    The Publisher makes no representation or warranties of any kind, including but not limited to, the warranties of fitness for a particular purpose or merchantability, nor are any such representations implied with respect to the material set forth herein, and the publisher takes no responsibility with respect to such material. The publisher shall not be liable for any special, consequential, or exemplary damages resulting, in whole or part, from the reader’s use of, or reliance upon, this material.

    DEDICATION

    To teachers, who make it possible to disseminate knowledge

    to enlighten the young and curious minds

    of our future generations

    To students, who are the future of the world

    THANKS

    To my friends and colleagues

    To my family for their love and support

    Table of Contents

    SolidWorks Flow

    Simulation 2020 Black Book

    Preface

    About Author

    Chapter 1

    Starting with Computational Fluid Dynamics

    Introduction of Fluid Mechanics

    Basic Properties of Fluids

    Mass Density, Weight Density, and Specific Gravity

    Viscosity

    Types of Fluids

    Thermodynamic Properties of Fluid

    Universal Gas Constant

    Compressibility of Gases

    Vapour Pressure and Cavitation

    Pascal’s Law

    Fluid Dynamics

    Bernoulli’s Incompressible Fluid Equation

    Eulerian and Lagrangian Method of Analysis

    Differential Approach of Fluid Flow Analysis

    Acceleration

    Introduction to CFD

    Introduction to SolidWorks

    Flow Simulation

    Starting SolidWorks Flow Simulation

    Preparing Component For Simulation

    Creating lids by Solid Modeling (First Method)

    Creating Lids using the Create Lids tool (Second Method)

    Checking Geometry for leakage

    Leak Tracking

    Engineering Database

    Chapter 2

    Creating and Managing

    Flow Simulation Project

    Starting Projects

    Creating Project

    Computational Domain

    Fluid Subdomains

    Rotating Region

    Setting Material for Model

    Importing Material Data

    Boundary Conditions

    Specifying Flow Opening

    Specifying Pressure Opening

    Specifying Wall Boundary Condition

    Radiative Surfaces

    Goals

    Insert Global Goals

    Insert Point Goals

    Insert Surface Goals

    Insert Volume Goals

    Insert Equation Goals

    Mesh

    Global Mesh

    Insert local Mesh

    Show Basic Mesh

    Basic Mesh Color

    Important Tips about Mesh

    Create Mesh

    Setting Calculation Controls

    Finishing Options

    Refinement Options

    Solving Options

    Saving Options

    Chapter 3

    Analyzing and Generating

    Results of Analysis

    Introduction

    Generating Results

    Mesh

    Cut Plots

    Surface Plots

    Isosurfaces

    Flow Trajectories

    Particle Studies

    Point Parameters

    Surface Parameters

    Volume Parameters

    XY Plots

    Goal Plots

    Report

    Animations

    Export Results

    Chapter 4

    Practical and Practice

    Practical 1

    Practical 2

    Chapter 5

    Advanced Boundary Conditions

    Introduction

    Porous Medium

    Initial Condition

    Defining Heat Sources

    Defining Surface Heat Source

    Defining Volume Heat Source

    Applying Radiative Surface Properties

    Applying Radiation Source

    Applying Fan Properties

    Tracer Study

    Setting Source of Gas Traces

    Transferred Boundary Condition

    Applying Contact Resistance

    Heat Sink Simulation

    Thermoelectric Cooler

    Perforated Plate

    Two Resistor Component

    Electrical Condition

    Heat Pipe

    Thermal Joint

    Printed Circuit Board

    Chapter 6

    Advanced Boundary Conditions

    Introduction

    Conservation of Mass

    Conservation of Momentum

    Conservation of Energy

    Variations of Navier-Strokes Equation

    Time Domain

    Compressibility

    Low and High Reynolds Numbers

    Turbulence

    Steps of Computational Fluid Dynamics

    Creating Mathematical Model

    Discretization of Model

    Analyzing with Numerical Schemes

    Solution

    Visualization (Post-processing)

    Finite Difference Method

    Preface

    SolidWorks Flow Simulation 2020 is an Add-In for SolidWorks used to perform computational fluid dynamics related analysis. SOLIDWORKS Flow Simulation can perform complex calculations of computational fluid dynamics and can quickly and easily simulate fluid flow, heat transfer, and fluid forces that are critical to the success of your design.

    The SolidWorks Flow Simulation 2020 Black Book is the 3rd edition of our series on SolidWorks Flow Simulation. The book is targeted for beginners of SolidWorks Flow Simulation. This book covers the basic equations and terms of Fluid Dynamics theory. The book covers all the major tools of Flow Simulation modules like Fluid Flow, Thermal Fluid Flow, and Electronic Cooling modules. A chapter on basic concepts of CFD has been added in this edition. This book can be used as supplement to Fluid Dynamics course if your subject requires the application of Software for solving real-world problems. Some of the salient features of this book are :

    In-Depth explanation of concepts

    Every new topic of this book starts with the explanation of the basic concepts. In this way, the user becomes capable of relating the things with real world.

    Topics Covered

    Every chapter starts with a list of topics being covered in that chapter. In this way, the user can easy find the topic of his/her interest easily.

    Instruction through illustration

    The instructions to perform any action are provided by maximum number of illustrations so that the user can perform the actions discussed in the book easily and effectively. There are about 450 illustrations that make the learning process effective.

    Tutorial point of view

    At the end of concept’s explanation, the tutorial make the understanding of users firm and long lasting. Almost each chapter of the book has tutorials that are real world projects. Moreover, most of the tools in this book are discussed in the form of tutorials.

    Project

    Free projects and exercises are provided to students for practicing.

    For Faculty

    If you are a faculty member, then you can ask for video tutorials on any of the topic, exercise, tutorial, or concept.

    Formatting Conventions Used in the Text

    All the key terms like name of button, tool, drop-down etc. are kept bold.

    Free Resources

    Link to the resources used in this book are provided to the users via email. To get the resources, mail us at [email protected] with your contact information. With your contact record with us, you will be provided latest updates and informations regarding various technologies. The format to write us mail for resources is as follows:

    Subject of E-mail as Application for resources of............book.

    Also, given your information like

    Name:

    Course pursuing/Profession:

    Contact Address:

    E-mail ID:

    Note: We respect your privacy and value it. If you do not want to give your personal informations then you can ask for resources without giving your information.

    About Author

    The author of this book, Gaurav Verma, has written many books on CAD/CAM/CAE available already in market. He has written and assisted in more than 14 top selling titles in CAD/CAM/CAE. He has authored AutoCAD Electrical Black Books which are available in both English and Russian language. He has provided consultant services to many industries in US, Greece, Canada, and UK. SolidWorks Simulation Black Books are one of the most selling books in SolidWorks Simulation field. The author has hands on experience on almost all the CAD/CAM/CAE packages. If you have any query/doubt in any CAD/CAM/CAE package, then you can contact the author by writing at [email protected]

    For Any query or suggestion

    If you have any query or suggestion, please let us know by mailing us on [email protected]. Your valuable constructive suggestions will be incorporated in our books and your name will be addressed in special thanks area of our books on your confirmation.

    This page is left blank intentionally

    Chapter 1

    Starting with Computational Fluid Dynamics

    The major topics covered in this chapter are:

    •Introduction to CFD

    •Starting SolidWorks Flow Simulation

    •Methods of Creating Lids

    •Check Geometry

    •Leak Tracking Technique

    •Engineering Database

    Introduction of Fluid Mechanics

    During the course, you will know various aspects of SolidWorks Flow Simulation for various practical problems. But, keep in mind that all computer software work on same concept of GIGO which means Garbage In - Garbage Out. So, if you have specified any wrong parameter while defining properties of analysis then you will not get the correct results. This problem demands a good knowledge of Fluid Mechanics so that you are well conversant with the terms of classical fluid mechanics and can related the results to the theoretical concepts. In this chapter, we will discuss the basics of Fluid Mechanics and we will try to related them with analysis wherever possible.

    Basic Properties of Fluids

    There are various basic properties required while performing analysis on fluid. These properties are collected by performing experiments in labs. Most of these properties are available in the form of tables in Steam Tables or Design Data books. These properties are explained next.

    Mass Density, Weight Density, and Specific Gravity

    Density or Mass Density is the mass of fluid per unit volume. In SI units, mass is given by kg and volume is given by m3. So, mathematically we can say,

    Density (or Mass Density)

    kg/m3

    If you are asked for weight density then multiply mass by gravity coefficient. Mathematically it can be expressed as:

    Weight Density w =

    N/m3

    Most of the time, fluid density is available as Specific Gravity. Specific gravity is the ratio of weight density of fluid to weight density of water in case of liquid. In case of gases, it is the ratio of weight density of fluid to weight density of air. Note that weight density of water is 1000 kg/m³ at 4 oC and weight density of air is 1.225 kg/m³ at 15 ᵒC.

    Note that as the temperature of liquid rises, its density is reduced and vice-versa. The same is true for gases as well.

    Viscosity

    Viscosity is the coefficient of friction between different layers of fluid. In other terms, it is the shear stress required to produce unit rate of shear strain in one layer of fluid. Mathematically it can be expressed as:

    N.s/m² or Pa.s

    where μ is viscosity, τ is shear stress (or force applied tangentially to the layer of fluid) and (dx/dy) is the shear strain.

    As the density of fluid changes with temperature so does the viscosity changes with temperature. the formula for viscosity of fluid at different temperature is given next.

    For Liquids,

    For Gases,

    here, is viscosity at 0 oC

    α and β are constants for fluid (for water α is 0.03368 and β is 0.000221)

    (for air α is 5.6x10-8 and β is 1.189x10-10)

    t is the temperature

    Problem on Viscosity

    Dynamic viscosity of lubricant oil used between shaft and sleeve is 8 poise. The shaft has a diameter of 0.4 m and rotates at 250 r.p.m. Find out the power lost due to viscosity of fluid if length of sleeve is 100 mm and thickness of oil film is 1.5 mm; refer to Figure-2.

    Solution:

    Viscosity μ = 8 poise = 8/10 N.s/m² =0.8 N.s/m²

    Tangential velocity of shaft =5.236 m/s

    Using the relation,

    where dx is 5.236

    and dy is 1.5x10-3

    = 2792.53 N/m2

    Shear force F = τ x Area

    N

    Torque (T) = Force x Radius = 350.92 x 0.2 = 70.184 N.m

    Power = 2 π.N.T/60 = (2 π x 250 x 70.184)/60=1837.41 W Ans.

    Now, you may ask how this problem relates with CFD. As discussed earlier, the viscosity changes with temperature and as fluid flows through pipe or comes in contact with rolling shaft, its temperature rises. In such cases, CFD gives the approximate viscosity and temperature of fluids in the system at different locations. This data later can be used to find solution for other engineering problems.

    Types of Fluids

    There are mainly 5 types of fluids:

    Ideal Fluids: These fluids are incompressible and have no viscosity which means they flow freely without any resistance. This category of fluid is imaginary and used in some cases of calculations.

    Real Fluids: These are the fluids found in real world. These fluids have viscosity values as per their nature and can be compressible in some cases.

    Newtonian Fluids: Newtonian fluids are those in which shear stress is directly proportional to shear strain. In a specific temperature range, water, gasoline, alcohol etc. can be Newtonian fluids.

    Non-Newtonian Fluids: Those fluids in which shear stress is not directly proportional to shear strain. Most of the time Real Fluids fall in this category.

    Ideal Plastic Fluids: Those fluids in which shear stress is more than yield value and they deform plastically. The shear stress in these fluids is directly proportional to shear strain.

    Thermodynamic Properties of Fluid

    Most of the liquids are not considered as compressible in general applications as their molecules are already bound closely to each other. But, Gas have large gap between their molecules and can be compressed easily relative to liquids. As we pick pressure to compress the gas, other thermodynamic properties also come into play. The relationship between Pressure, Temperature, and specific Volume is given by;

    P.V = RT

    here,

    P = Absolute pressure of a gas in N/m²

    V = Specific Volume = 1/ ρ

    R = Gas Constant (for Air is 287 J/Kg-K

    T = Absolute Temperature

    ρ = Density of gas

    If the density of gas changes with constant temperature then the process is called Isothermal process and if density changes with no heat transfer then the process is called Adiabatic process.

    For Isothermal process, p/ρ = Constant

    For

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