Fluent 6.3 Magnetohydrodynamics (Mhd) Module Manual

FLUENT 6.3 Magnetohydrodynamics (MHD) Module Manual

September 2006

Copyright c 2006 by Fluent Inc. All rights reserved. No part of this document may be reproduced or otherwise used in any form without express written permission from Fluent Inc.

Airpak, FIDAP, FLUENT, FLUENT for CATIA V5, FloWizard, GAMBIT, Icemax, Icepak, Icepro, Icewave, Icechip, MixSim, and POLYFLOW are registered trademarks of Fluent Inc. All other products or name brands are trademarks of their respective holders. CHEMKIN is a registered trademark of Reaction Design Inc. Portions of this program include material copyrighted by PathScale Corporation 2003-2004.

Fluent Inc. Centerra Resource Park 10 Cavendish Court Lebanon, NH 03766

Contents

Preface 1 Introduction 2 Magnetohydrodynamic Model Theory 2.1 2.2 Introduction

UTM-1 1-1 2-1 2-1 2-2 2-3 2-4 2-4 3-1 3-1 3-2 3-2 3-3 3-3 4-1 4-1 4-1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Magnetic Induction Method . . . . . . . . . . . . . . . . . . . . . . . . . 2.2.1 2.2.2 Case 1: B0 Generated in Non-conducting Media . . . . . . . . . Case 2: B0 Generated in Conducting Media . . . . . . . . . . . .

2.3

Electric Potential Method . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Implementation 3.1 3.2 3.3 3.4 3.5 Solving Magnetic Induction and Electric Potential Equations . . . . . . . Calculation of MHD Variables . . . . . . . . . . . . . . . . . . . . . . . . MHD Interaction with Fluid Flows . . . . . . . . . . . . . . . . . . . . . MHD Interaction with Discrete Phase Model . . . . . . . . . . . . . . .

General User-Defined Functions . . . . . . . . . . . . . . . . . . . . . . .

4 Using the FLUENT MHD Module 4.1 4.2 MHD Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . Loading the MHD Module . . . . . . . . . . . . . . . . . . . . . . . . . .

c Fluent Inc. June 21, 2006

i

CONTENTS

4.3

MHD Model Setup . . . . . . . . . . . . . . . . . . . . . . . ....