檢視 $gmshdiffusor 的原始碼

$gmshdiffusor is a special function to define the material parameters. Some materials are diffusive material so that we can apply the diffusor parameters. This command is similar to [[$diffusortype]]. However, this command goes with gmsh input setting. <br>

The usage is:

 $diffusortype
 type_1 diffusion_length_1
 type_2 diffusion_length_2
 ...
 ...  totalregions
 ...
 type_Nth diffusion_length_N

In side the diffusor, the program will decide if it will change location depending on diffusion length. 

 Type 1,  random diffusion
 Type 2,  cos dependent
 Type 3,  cos^2 dependent

more detail can by found in [[$diffusortype]].