Hello to all.
I have a problem with a multiphysic sequence on Comsol 4.0.
In order to simulate the electromagnetic behavior of a rectangular waveguide with a dielectric block inside, that can be warmed up, I built a model which contains three physical modules:
- thermal stress,
- moving mesh,
- EM waves.
The model should perform the following steps:
-simulate the displacement due to the deformation induced by the heating,
-move the mesh to a new position,
-calculate the electric field and the S-parameters using the moved mesh.
When I launch the simulation, I experience the following error:
"Variables not coupled to any dof
- Detail: mod1.Ex, mod1.Ey, mod1.Ez".
However, if I disable the moving mesh and the Thermal stress or if I disable the moving mesh and the RF module, the only Thermal stress model and the only RF model run correctly.
What problem does my model encounter ?
Probably it resides in the solver sequence.
I attach the file.
Thanks in advance.
Alberto
I have a problem with a multiphysic sequence on Comsol 4.0.
In order to simulate the electromagnetic behavior of a rectangular waveguide with a dielectric block inside, that can be warmed up, I built a model which contains three physical modules:
- thermal stress,
- moving mesh,
- EM waves.
The model should perform the following steps:
-simulate the displacement due to the deformation induced by the heating,
-move the mesh to a new position,
-calculate the electric field and the S-parameters using the moved mesh.
When I launch the simulation, I experience the following error:
"Variables not coupled to any dof
- Detail: mod1.Ex, mod1.Ey, mod1.Ez".
However, if I disable the moving mesh and the Thermal stress or if I disable the moving mesh and the RF module, the only Thermal stress model and the only RF model run correctly.
What problem does my model encounter ?
Probably it resides in the solver sequence.
I attach the file.
Thanks in advance.
Alberto