Thermal anaysis Using PDE Toolbox

Currently I am conducting thermal analysis using the thermal model in PDE toolbox. I want to study the temperature variation with time of a mechanical assembly which consists of different parts. I exported the assembly from the CAD software as STL file and I read it from MATLAB as follows thermalmodel.Geometry = importGeometry(thermalmaodel,'thermalmodel.stl'). I specified the boundary condition at faces and the initial condition as specified in the documentation. but When I solved I obtained solutions for specific parts which include the boundary condition and other parts haven't should any temperature variation. It seems that the interact between parts need to be specified as boundary condition. I would do appreciate if you let me know how to specify the boundary conditions among parts in multi-part assembly. Thank you in advance for your kind reply.

Answer 1

[Alan Weiss]

While I don't know exactly what kind of problem you have, generally, PDE Toolbox does not yet support multi-part assemblies. Now that is, perhaps, an overstatement, because sometimes you can represent things in a single geometry. But you generally cannot specify boundary conditions on internal boundaries, and as far as I know, there are as yet no 3-D internal boundaries.

Alan Weiss

MATLAB mathematical toolbox documentation