Hi guys,
I refer to this model:
www.comsol.com/model/fixed-bed...ytic-hydrocarbon-oxidation-257
This model was created in 3.5a. I loaded it in a COMSOL 4.4 version. Two physics came out; Transport of Dilute Species, and Heat Transfer in Fluids.
Then, I copied all the physics exactly, including all the variables, using a brand new COMSOL 4.4 file. However, this brand new file failed to see convergence. Whereas the 3.5a file which I downloaded took only a few seconds to converge.
Solver, meshing are identical (double/triple checked). Can anybody point out what's wrong?
I refer to this model:
www.comsol.com/model/fixed-bed...ytic-hydrocarbon-oxidation-257
This model was created in 3.5a. I loaded it in a COMSOL 4.4 version. Two physics came out; Transport of Dilute Species, and Heat Transfer in Fluids.
Then, I copied all the physics exactly, including all the variables, using a brand new COMSOL 4.4 file. However, this brand new file failed to see convergence. Whereas the 3.5a file which I downloaded took only a few seconds to converge.
Solver, meshing are identical (double/triple checked). Can anybody point out what's wrong?