Application of CFD Simulation to Study the Physics of Fluid Flow and Heat Transfer Problems



TABLE OF CONTENTS

CHAPTER ONE: INTRODUCTION1

Research Questions1

Aims and Objectives2

CHAPTER 2: LITERATURE REVIEW3

Simulation of air flow (CFD)4

CHAPTER 3: METHODOLOGY6

REFERENCES7

CHAPTER ONE: INTRODUCTION

The computational fluid dynamics (CFD) is the analysis of systems related to fluid flow, heat transfer and other related phenomena (such as chemical reactions) through computer simulation. It is a type of technique used to solve and study complex heat transfer problems and fluid flow. This is a technology which has been continuously improved and developed over past few years. Typical applications include (Argyropoulos, 2000, 273):

1.Process Industry (Chemical Engineering): mixing equipment, reactors, polymer molding

2.Building: Environmental study of buildings, both external (wind and snow loads) and internal (HVAC)

3.Safety and health: Investigating the effects of fire and smoke (in tunnels for example)

4.Motor Industry: Modelling of combustion, vehicle aerodynamics

5.Electrical and Electronic Engineering: Cooling circuit including microcircuits

6.Environmental Engineering: Distribution of pollutants and effluents

7.Energy: Optimization of combustion processes

8.Medicine: Studies of blood flow through capillaries, arteries, veins

Research Questions

What is the Simulation of air flow (CFD?)

What are different solutions of air distribution, load, and design?

What is the relationship between the parameters of the internal climate of buildings, comfort, and air quality?

Aims and Objectives

The aim and objectives of this study are:

To identify the importance of computational fluid dynamics (CFD)

To analyse the application of CFD simulation to study the physics of fluid flow and heat transfer problems.

CHAPTER 2: LITERATURE REVIEW

The application of CFD an important tool, it is a sophisticated fluid flow simulations. Compressible as well as incompressible flows can be combined with advanced turbulence models and forced and natural convection. An important characteristic of the CFD Module is its capability of precise multiphysics-flow simulations such as conjugate heat transfer with non-isothermal flow, fluid-structure interactions, non-Newtonian flow with viscous heating, and fluids with concentration-dependent viscosity. Porous-media flow user interfaces allow for isotropic or anisotropic media, as well as automatically combined free flow and porous domains. Tools for modelling of stirred vessels with rotating parts are available for both 2D and 3D flows.

The CFD is interfaces for homogeneous two-phase flow include a mixture model for fine particle suspensions and a bubbly flow model for macroscopic gas bubble flow. For interface tracking two-phase flow, formulations are provided using the level-set and phase-field methods. CFD advanced transport and reacting flow simulations are automatically extended when combined with the Chemical Reaction Engineering (Argyropoulos, 2009, 535). For fluid-structure interactions, the Structural ...