请教：ANSYS三种辐射模型的区别！什么场合该用什么模型！谢谢！

TT-dogy

请教：ANSYS三种辐射模型的区别！什么场合该用什么模型！谢谢！

noisybaot

The ANSYS program provides four methods for radiation analysis, each meant for a different situation:

You can use LINK31, the radiation link element, for simple problems involving radiation between two points or several pairs of points.

You can use the surface effect elements, SURF151 and SURF152 for radiation between a surface and a point.

You can use the AUX12 Radiation Matrix method for more generalized radiation problems involving two or more surfaces. (Only the ANSYS Multiphysics, ANSYS Mechanical, and ANSYS Professional programs offer Radiation Matrix Generator.)

You can also use the Radiosity Solver method for more generalized radiation problems in 3-D/2-D involving two or more surfaces. This method is supported by all 3-D/2-D elements having a temperature degree of freedom. (Only the ANSYS Multiphysics, ANSYS Mechanical, and ANSYS Professional programs offer Radiosity Solver.)


You can use the four radiation analysis methods for either transient or steady-state thermal analyses. Radiation is a nonlinear phenomenon, so you will need an iterative solution to reach a converged solution.

beauty_can

ANSYS提供了三 种方法分析热辐射问题：
•        用LINK31，辐射线单元，分析两个点或多对点之间的热辐射；
•        用表面效应单元SURF19或SURF22，分析点对面的热辐射；
•        用AUX12，热辐射矩阵生成器，分析面与面之间的热辐射

wolfsjtu

补充楼上：对于表面效应单元，SURF151用于模型；SURF152用于三维模型