Dear Milad,

Please have a look on this file in the comsol application document:

Anisotropic Heat Transfer through Woven Carbon Fibers

Dear Milad,

Yes, i feel it is possible to model different material with varying properties with respect to direction. You need first to draw a region, zone or area then select the individual region or area and assign the material properties for it. this can be done in any commercial software. after assigning the properties for the region remove the line use for dividing the region. This method can be used even for changing the density of mesh from region to region..ok all rhe best..

Dear Milad,

Please have a look on this file in the comsol application document:

Anisotropic Heat Transfer through Woven Carbon Fibers