Dear forum,
I ask for an advice in the following things:
1)
Is there a predefined Poynting vector in RF module?
& where exactly can I list through the comsol-names for physical quantities?
2)
I have defined own analytic function
besselbeam(x,y,z,kz) = besselj(0, kz*sqrt(x^2+y^2)) * exp(-j*z*kz)
When I try to use it for the initial field Ez = besselbeam(x,y,z,kacko_z)
then the solver says
Error in user-defined function.
- Function: besselbeam
Failed to evaluate expression.
- Expression: besselbeam(x/unit_m_cf,y/unit_m_cf,z/unit_m_cf,kacko_z*unit_m_cf)
I am solving for a fluid velocity field, not EM at the moment.
What is wrong? Thanks for ideas.
Lukas Chvatal
I ask for an advice in the following things:
1)
Is there a predefined Poynting vector in RF module?
& where exactly can I list through the comsol-names for physical quantities?
2)
I have defined own analytic function
besselbeam(x,y,z,kz) = besselj(0, kz*sqrt(x^2+y^2)) * exp(-j*z*kz)
When I try to use it for the initial field Ez = besselbeam(x,y,z,kacko_z)
then the solver says
Error in user-defined function.
- Function: besselbeam
Failed to evaluate expression.
- Expression: besselbeam(x/unit_m_cf,y/unit_m_cf,z/unit_m_cf,kacko_z*unit_m_cf)
I am solving for a fluid velocity field, not EM at the moment.
What is wrong? Thanks for ideas.
Lukas Chvatal