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1、Release 13.0 - 2010 SAS IP, Inc. All rights reserved.Table of Contents1. Analyzing Thermal Phenomena1.1. How ANSYS Treats Thermal Modeling1.1.1. Convection1.1.2. Radiation1.1.3. Special Effects1.1.4. Far-Field Elements1.2. Types of Thermal Analysis1.3. Coupled-Field Analyses1.4. About GUI Paths and
2、Command Syntax2. Steady-State Thermal Analysis2.1. Available Elements for Thermal Analysis2.2. Commands Used in Thermal Analyses2.3. Tasks in a Thermal Analysis2.4. Building the Model2.4.1. Using the Surface Effect Elements2.4.2. Creating Model Geometry2.5. Applying Loads and Obtaining the Solution2
3、.5.1. Defining the Analysis Type2.5.2. Applying Loads2.5.3. Using Table and Function Boundary Conditions2.5.4. Specifying Load Step Options2.5.5. General Options2.5.6. Nonlinear Options2.5.7. Output Controls2.5.8. Defining Analysis Options2.5.9. Saving the Model2.5.10. Solving the Model2.6. Reviewin
4、g Analysis Results2.6.1. Primary data2.6.2. Derived data2.6.3. Reading In Results2.6.4. Reviewing Results2.7. Example of a Steady-State Thermal Analysis (Command or Batch Method)2.7.1. The Example Described2.7.2. The Analysis Approach2.7.3. Commands for Building and Solving the Model2.8. Performing
5、a Steady-State Thermal Analysis (GUI Method)2.9. Performing a Thermal Analysis Using Tabular Boundary Conditions2.9.1. Running the Sample Problem via Commands2.9.2. Running the Sample Problem Interactively2.10. Where to Find Other Examples of Thermal Analysis3. Transient Thermal Analysis3.1. Element
6、s and Commands Used in Transient Thermal Analysis3.2. Tasks in a Transient Thermal Analysis3.3. Building the Model3.4. Applying Loads and Obtaining a Solution3.4.1. Defining the Analysis Type3.4.2. Establishing Initial Conditions for Your Analysis3.4.3. Specifying Load Step Options3.4.4. Nonlinear O
7、ptions3.4.5. Output Controls3.5. Saving the Model3.5.1. Solving the Model3.6. Reviewing Analysis Results3.6.1. How to Review Results3.6.2. Reviewing Results with the General Postprocessor3.6.3. Reviewing Results with the Time History Postprocessor3.7. Reviewing Results as Graphics or Tables3.7.1. Re
8、viewing Contour Displays3.7.2. Reviewing Vector Displays3.7.3. Reviewing Table Listings3.8. Phase Change3.9. Example of a Transient Thermal Analysis3.9.1. The Example Described3.9.2. Example Material Property Values3.9.3. Example of a Transient Thermal Analysis (GUI Method)3.9.4. Commands for Buildi
9、ng and Solving the Model3.10. Where to Find Other Examples of Transient Thermal Analysis4. Radiation4.1. Analyzing Radiation Problems4.2. Definitions4.3. Using LINK31, the Radiation Link Element4.4. Modeling Radiation Between a Surface and a Point4.5. Using the AUX12 Radiation Matrix Method4.5.1. Pr
10、ocedure4.5.2. Recommendations for Using Space Nodes4.5.3. General Guidelines for the AUX12 Radiation Matrix Method4.6. Using the Radiosity Solver Method4.6.1. Procedure4.6.2. Further Options for Static Analysis4.7. Advanced Radiosity Options4.8. Example of a 2-D Radiation Analysis Using the Radiosit
11、y Method (Command Method)4.8.1. The Example Described4.8.2. Commands for Building and Solving the Model4.9. Example of a 2-D Radiation Analysis Using the Radiosity Method with Decimation and Symmetry (Command Method)4.9.1. The Example Described4.9.2. Commands for Building and Solving the ModelReleas
12、e 13.0 - 2010 SAS IP, Inc. All rights reserved.Chapter1:Analyzing Thermal PhenomenaA thermal analysis calculates the temperature distribution and related thermal quantities in a system or component. Typical thermal quantities of interest are: The temperature distributions The amount of heat lost or
13、gained Thermal gradients Thermal fluxes.Thermal simulations play an important role in the design of many engineering applications, including internal combustion engines, turbines, heat exchangers, piping systems, and electronic components. In many cases, engineers follow a thermal analysis with a st
14、ress analysis to calculate thermal stresses (that is, stresses caused by thermal expansions or contractions).The following thermal analysis topics are available: How ANSYS Treats Thermal Modeling Types of Thermal Analysis Coupled-Field Analyses About GUI Paths and Command Syntax1.1.How ANSYS Treats
15、Thermal ModelingOnly the ANSYS Multiphysics, ANSYS Mechanical, ANSYS Professional, and ANSYS FLOTRAN programs support thermal analyses.The basis for thermal analysis in ANSYS is a heat balance equation obtained from the principle of conservation of energy. (For details, consult the Theory Reference for the Mechanical APDL and Mechanical Applications.) The finite element solution you perform via ANSYS calculates nodal temperatures, then uses the nodal temperatures to obtain other thermal quantities.The ANSYS program handles a
