Computational fluid dynamics : getting started quickly with ANSYS CFX 18 through simple examples / Stefan Lecheler.

Format:

Book

Author/Creator:

Lecheler, Stefan, author.

Standardized Title:

Numerische Strömungsberechnung. English

Language:

English

German

Subjects (All):

Computational fluid dynamics.

Genre:

Electronic books.

Physical Description:

1 online resource (x, 210 pages)

Place of Publication:

Wiesbaden : Springer, [2022]

Language Note:

Translated from German.

Summary:

This textbook and exercise book is aimed at future users of computational fluid dynamics software. In addition to the comprehensibly presented basics, the focus is on technical examples treated in detail with supplementary practical hints. Comprehension questions including applications give the beginner confidence in fundamental relationships. The original 4th German edition has been adapted to the latest program version ANSYS 18.1. The content Aim and structure of the book Conservation equations of fluid mechanics Discretization Computational meshes Solution methods Sequence of a numerical flow calculation Three application examples The target groups Engineering students at colleges and universities Engineers who carry out flow calculations Lecturers who deal with questions on numerical flow calculations The author Dr.-Ing. Stefan Lecheler is Professor of Thermodynamics in the Faculty of Mechanical Engineering at the Bundeswehr University in Munich. There, he also teaches computational fluid dynamics in the Master's program Computer Aided Engineering.

Contents:

Intro

Preface

Symbol directory

Contents

1: Introduction

1.1 Aim of This Book

1.2 Tasks of the Numerical Flow Calculation

1.3 Structure of the Book

2: Conservation Equations of Fluid Mechanics

2.1 Aim of This Chapter

2.2 Derivation of the Conservation Equations

2.2.1 Equation of Conservation of Mass

2.2.2 Conservation of Momentum Equations

2.2.3 Conservation of Energy Equation

2.3 Navier-Stokes Equations

2.3.1 Complete Navier-Stokes Equations

Navier-Stokes Equations in Scalar Form (Cartesian Coordinates)

Navier-Stokes Equations in Vector Form (Cartesian Coordinates)

Navier-Stokes Equations in Divergence Form

2.3.2 Additionally Required Equations and Quantities

2.3.3 The Substance Values

Boundary Conditions

Physical Boundary Conditions at the Inflow Edge

Physical Boundary Conditions at the Downstream Edge

Physical Boundary Conditions at the Solid State Boundary

Non-Reflective Boundary Conditions

Summary of Boundary Conditions

2.3.4 Reynolds-Averaged Navier-Stokes Equations

2.3.5 Turbulence Models

2.4 Simplification Possibilities

2.4.1 Introduction

2.4.2 Thin-Layer Navier-Stokes Equations

2.4.3 Euler Equations

2.4.4 Boundary Layer Equations

2.4.5 Potential Equation

3: Discretization of the Conservation Equations

3.1 Aim of This Chapter

3.2 What Does Discretization Mean?

3.3 Spatial Discretization

3.3.1 Discretization of the First Derivatives

3.3.2 Discretization of the Second Derivatives

3.3.3 Notes on Spatial Discretization

3.4 Time Discretization

3.4.1 Time Asymptotic or Stationary Solutions

3.4.2 Time-Accurate or Transient Solutions

3.5 Difference Equations

3.5.1 Derivation

3.5.2 Consistency, Stability and Convergence

Consistency

Stability

Convergence

3.5.3 Additive Numerical Viscosity

3.5.4 Upwind Discretization

3.5.5 Explicit and Implicit Discretization

3.5.6 CFL Number

3.5.7 Summary

4: Computational Meshes

4.1 Aim of This Chapter

4.2 Overview

4.3 Structured Meshes

4.3.1 Cartesian Meshe

4.3.2 Curvilinear Meshes

4.3.3 The Transformation of Coordinates into Curvilinear Coordinates

4.3.4 Block Structured Meshe

4.4 Unstructured Meshe

4.5 Mesh Adaptation

4.5.1 Mesh Densification

4.5.2 Adaptive Meshe

5: Solution Methods

5.1 Aim of This Chapter

5.2 Overview

5.3 Central Methods

5.3.1 Overview

5.3.2 Lax-Wendroff Method

5.3.3 Runge-Kutta Multi-Step Method

5.3.4 ADI Method

5.4 Upwind Methods

5.4.1 Overview

5.4.2 Flux Vector Splitting Method

5.4.3 Flux Difference Splitting Method

5.4.4 Summary

5.5 High-Resolution Methods

5.5.1 Overview

5.5.2 Monotonicity, TVD and Entropy Condition

5.5.3 Limiter Functions

5.5.4 Summary

5.6 Comparison of the Methods

5.6.1 Stationary Flow Through a Divergent Nozzle

5.6.2 Unsteady Flow in a Shock Wave Tube

6: Typical Workflow of a Numerical Flow Calculation

Notes:

Includes bibliographical references and index.

Description based upon print version of record.

Other Format:

Print version: Lecheler, Stefan Computational Fluid Dynamics

ISBN:

9783658384531

3658384530

OCLC:

1354205449

Access Restriction:

Restricted for use by site license.