COMSOL多物理场建模实践：探索工程与科学模拟

COMSOL

Multiphysics

需积分: 10 198 浏览量更新于2024-07-18 收藏 24.79MB PDF 举报

身份认证购VIP最低享 7 折!

领优惠券(最高得80元）

资源详情

资源推荐

xviii • Introduction

eliminates reflection problems at the domain boundary. That methodology

is the Perfectly Matched Layer.

Chapter 10 includes two models, the 2D Concave Metallic Mirror PML

Model and the 2D Energy Concentrator PML Model, to demonstrate the

use of the Perfectly Matched Layer methodology.

Chapter 11 Bioheat Models

The Bioheat Equation plays an important role in the development and

analysis of new therapeutic medical techniques (e.g. killing of tumors). If

the postulated method raises the local temperature of the tumor cells,

without excessively raising the temperature of the normal cells, then the

proposed method will probably be successful. The results (estimated time

values) from the model calculations will significantly reduce the effort

needed to determine an accurate experimental value. The guiding principle

needs to be that tumor cells die at elevated temperatures. The literature

cites temperatures that range from 42 °C (315.15 K) to 60 °C (333.15).

The first half of Chapter 11 models the Bioheat Equation as applied

with a photonic heat source (laser).

The second half of Chapter 11 models the Bioheat Equation as applied

with a microwave heat source.

2 • Multiphysics Modeling Using COMSOL 4

Guidelines for new CoMsol MultiphysiCs 4.x

Modelers

First, for purposes of clarity in this book, when the term “COM-

SOL Multiphysics 4.x software” or ”4.x” occurs, that term means:

COMSOL Multiphysics software version 4.1 or later.

Second, the user of this text should be sure to READ ALL NOTES

in this book, as the Notes contain information that is not presented

elsewhere and should facilitate comprehension and, hopefully,

minimize modeling errors for modelers unfamiliar with 4.x.

When building models, new or otherwise, it is VERY IMPOR-

TANT to SAVE EARLY and OFTEN.

Hardware Considerations

There are two basic rules for selecting hardware that will support suc-

cessful modeling with 4.x. The first rule is that the modeler should be sure

to determine the minimum system requirements their version of 4.x

requires before borrowing or buying a computer to run his new modeling

software. This book introduces the use of 4.x for modeling within the Micro-

soft Windows



and the Macintosh OS X



operating systems environments.

COMSOL Multiphysics 4.x software supports shared memory parallel-

ism under both the Microsoft Windows

and the Macintosh OS X

operating

systems. Distributed memory parallelism is supported on a Microsoft Win-

dows Cluster, using a COMSOL Floating Network License. Neither dis-

tributed memory nor cluster computing will be covered in this book.

The number of platform cores is equal to the number of coproces-

sors designed into the computer (e.g. 1, 2, 4, 8, 12, etc.).

Shared memory parallelism means that multiple cores in the same

computer share the same memory array. Distributed memory

parallelism means multiple computers with multiple cores are con-

nected in a cluster with the problem divided into multiple parallel

computational sub-segments {1.1} distributed over the computa-

tional units of the cluster.

The second rule of successful modeling is the modeler should run 4.x

on the best platform with the highest processor speed and the most mem-

ory obtainable; the bigger, the faster, the better. It is the general rule that

note

4 • Multiphysics Modeling Using COMSOL 4

Simple Model Setup Overview

Figure 1.1 shows the default COMSOL Desktop Display immediately

after startup. The default coordinate selection for modeling calculations at

startup in 4.x is 3D. The 3D coordinate system shown in the Graphics win-

dow is based on the Right-Hand-Rule.

The Right-Hand-Rule is derived, as it states, from your right hand.

Look at your right hand, point the thumb up, point your index

(first) finger away from your body, at a right angle (90 degrees)

to your thumb and point your middle (second) finger, at a right

angle to the thumb, tangent to your body. Your thumb represents

the Z-axis, your index (first) finger represents the X-axis, and your

middle (second) finger represents the Y-axis.

In a 3D coordinate system that obeys the Right-Hand-Rule, X rotates

into Y and generates Z. Z is the direction in which a Right-Handed Screw

would advance (move into the material into which it is being screwed).

The modeler should note that the default COMSOL Desktop for

4.x displays four active windows: Model Builder, Model Wiz-

ard, Graphics, and Messages; and two inactive windows: Model

Library and Progress. The Desktop Display can, of course, be

modified as needed to show more or fewer (see COMSOL Desk-

top Environment {1.3}). In this book, the Desktop Display will be

used in the default configuration, except when modifications are

required.

The most singularly important currently active window for

the modeler, at this point, is the Model Wizard window. Before

anything else can happen relative to creating a new model, 4.x

requires that the modeler either choose a new coordinate system or

accept the default 3D Cartesian coordinate system.

The Model Wizard window of the Desktop Display shows six coordi-

nate system (Space Dimension) choices available for selection: 3D, 2D Axi-

symmetric, 2D, 1D Axisymmetric, 1D, and 0D. See Figure 1.2 to observe

the interface details.

Figure 1.2 shows the Model Wizard window for model coordinate sys-

tem (Space Dimension) selection. The default coordinate selection for

modeling calculations at startup in 4.x is 3D.

note

剩余580页未读，继续阅读

zzzzasleep

粉丝: 2
资源: 6

COMSOL多物理场建模实践：探索工程与科学模拟

Multiphysics Modeling Using Comsol 英文原版

COMSOL_Multiphysics_Modeling_Guide

( Multiphysics Modeling Using COMSOL v.4

multiphysics modeling using comsol5 and matlab - roger w. pryor

comsol multiphysics reference manual中文

comsol multiphysics 静电场

你有comsol光学仿真学习的书籍推荐吗

有适合comsol multiphysics的python脚本吗

comsol_multiphysics函数定义用户指南

comsol multiphysics基本操作指南和常见问题解答

comsol multiphysics工程实践与理论仿真

COMSOL官方文档

comsol案例库文件夹在哪儿

comsol多物理场仿真什么时候出的

[comsol 6.0] comsol programming reference manual

comsol with matlab安装

solidwork怎么调出comsol插件

comsol multiphysics

comsol-multiphysics-中文使用手册.pdf

comsol学习资料推荐

最新资源