【实例简介】

comsol和matlab软件的接口程序，适合初学者，简单易懂

CONTENTS

hapter l: Introduction to MATLAB

About this uide

Where Do I Access the Documentation and Model Library?

8

Typographical Conventions

Getting Started with MATLAB

Creating a Model in COMSOL Multiphysics

ith a model obi

Loading and Saving a Model

Importing and Exporting a Model

Converting COMSOL 3.5a Models

Calling External MATLAB Functions in the COMSOL Desktop

Generating a user-Defined Interface

8

Running COMSOL with MATLAB in Batch Mode

8

Chapter 2: Building mode

The model。bi

20

Model object methods

Model object Information

A Simple Model Example

23

Utility functi

Using the On-Line d

Using MATLAB Functions in COMSOL Multiphysics

Defining a matlab fi

apter 3: Creating Geometri

Geometry Sequences

34

The Geometry Sequence Syntax

Working with Geometry Sequences

Exchanging Geometries with the COMSOL Desktop

Importing and Exporting Geometries and CAD Models from File

Retrieving Geometry Information

Modeling with a Parameterized Geometry

Images and Interpolation Data

Chapter 4: Modeling physics

Physics Interfaces

50

The Physics Interface Syntax

Using Physics Interfaces

The Material Syntax.·

Using materials

Modifying the Equations

52

Adding Global Equations

Getting the Extended Mesh Information

Chapter 5: Creating meshes

Meshing Sequences

The Meshing Sequence Syntax

Importing External Meshes and Mesh Objects

Mesh Informati

74

Getting and setting mesh data

Chapter 6: Creating studies

The stud

The Study sy

Using the stud

The Solver Configura

CaNTENTS

Using Solver Configurations

Evaluating System Matrices

2

Chapter 1: Analyzing res

e Plot gr。upS

Using Plot Groups

The Data Set syntax

Eval

Evaluating global d:

Integrating Expressions

Generating Reports

Chapter 8: COMSoL 3.5a Compatibility

g M-Fil

M-File conversion

M-File Conversion, Including a For Lo

Unsupported Functions in COMSOL Multiphysics 4.1

CONTENTS

Chapter 9: Command reference

umar

commands

26

Commands Grouped by functi

27

INDEX

63

63

6CaNTENTS

Introduction t matlaB

his guide introduces you to the Live Link product for MATLAB, which extends

your COMSOL modeling environment with an interface between COMSOL

Multiphysics and MATLAB. The COMSOL API REference Guide provides

dditional docume

of the api

In this section

About this guide

Getting Started with MAtLAB

About this guide

Where Do I Access the Documentation and Model library?

There are several sources to find more information about the live link interface fo

MATLAB including accessing the on-linc documentation with the command mphdoc

The section Command Reference also describes additional utilities available for use

with the live l ink intertace for matlaB

Note: If you are working directly from a PDF on your computer, the blue links do

not work to open a model or documentation referenced in a diffcrent user guide

However, if you are using the online help desk in Comsol Multiphysics, these links

work to other modules, modcl cxamples, and documentation sets

A number of Internet resources provide more infornation about COMSOL

Multiphysics, including licensing and technical information the electron

documentation, DynaInic Help, and the Model Library are all accessed through the

COMSOL DeSktop

THE DOCUMENTATION

The COMsOL Multiphysics Users Guide and Comsol Multiphysics referenco

Guide describe all the inter faces included with the basic comsol license. These

guides also have instructions about how to use ComSOL Multiphysics, and how to

access the documentation electronically through the COMSOL Multiphysics hel

To locate and search all the documentation, in COMSOL, select Help> Documentation

from the main menu and either enter a search term or look under a specific module in

the documentation tree

THE MODEL LIBRARY

Each model comes with a theoretical background and step-by-step instructions to

create the model. The models are available in ComSol as mph-files that you can

open for further investigation. Use both the step-by-step instructions and the actual

models as a template for your own modeling and applications. SI units are used to

8 CHAPTER I: INTRODUCTION TO MATLAB

describe the relevant properties, parameters, and dimensions in most examples, but

other unit systems are available

To open any model in COMSOL, select File>Open Model Library from the main menu

and then search either by name or browse by module name. If you also want to review

the documentation explaining how to build a model, select the model and click Model

PDF or Dynamic Help to reach the PDF or HTMl, version, respectively. Alternatively

select Help Documentation in COMSOL and again, search by name or browse b

module under Model Library in the documentation tree

If you have feedback or suggestions for additional models for the library(including

thosedevelopedbyyou),feelfreetocontactusatinfo@comsol.com

COMSOL WEB SITES

Maincorporatewehsitehttp://www.comsol.com

Worldwidecontactinformationhttp://www.comsol.com/contact/

Onlinetechnicalsupportnainpage:http://www.consol.com/support/

COMSOL Support Knowledge Base, your first stop for troubleshooting assistance,

where you can search for answers to ally COmsoL questions

http://www.comsol.com/support/knowledgebase/

Productupdateshttp://www.comsol.com/support/updates/

CONTACTING COMSOL BY EMAIL

For general product informatiOIl, contact COMSOL at info@consol.coIm

To receive technical support from COMSOL for the Comsol products

contact your local ComSOL representative or send your questions to

support@comsol.com.Youwillreceiveanautomaticnotificationandacasenumberby

email

COMSOL COMMUNITY

Onthecomsolwebsiteyoufindausercommunityathttp://www.comsol.com

community/. The user community includes a discussion forum, a modcl cxchange

news postings, and a searchable database of papers and presentations

ABOUT THIS GUIDE 9

Typographical Conventions

All COMSOL manuals use a set of consistent typographical conventions that should

make it easy for you to follow the discussion, realize what you can expect to see on the

screen, and know which data you Inust enter into various data-entry fields. In

particular, you should be aware of these conventions

a boldface font of the shown size and style indicates that the given word(s)appear

exactly that way on the Comsol Desktop(or, for toolbar buttons, in the

corresponding tooltip). For instance, we oftel refer to the Model Builder windo

which is the window that contains the model tree. As another example, the

instructions night say to click the Zoom Extents button, and the boldface font

indicates that you can expect to see a button with that exact label on the COmSOL

estop

Click text highlighted in blue to go to other information in the PDF. when you are

using the online help desk in Comsol multiphysics, these links also work to other

modules, model examples, and documentation sets

The names of other items on the COmsOl Desktop that do not have direct labels

contain a leading uppercase letter. For instance, we often refer to the main toolbar

this horizontal bar containing many icons appears on top of the user interface

However, nowhere on the screen will you see the term"Main?"referring to this

The symbol indicates a menu item. For example, Options> Results is equivalent to

From the Options menu, choose Results

A Code(monospace) font indicates keyboard entries in the user interface. You might

see an instruction such as"Type 1. 25 in the Current density edit field. The

monospace font also indicates code. This font also indicates variable names. An italic

(monospace)font indicates user inputs and parts of names that can vary or be

defined by the user

All italic font indicates the introduction of inportant terminology. Expect to find

an explanation in the same paragraph or in the glossary. The names of books in the

COMSOL documentation set also appear using anl italic font

10 CHAPTER I: INTRODUCTION TO MATLAB

【实例截图】

【核心代码】