Hello,
How can I find the definable parameters or variables for particle velocity in general reflection model of wall condition in particle tracing physics in COMSOL Multiphysics?
Dear Ava Bina , please find the discussion form about the same topic attached here with:
https://www.comsol.com/forum/thread/66151/Difference-between-Variable-and-Parameter
regards,
https://www.comsol.com/forum/thread/66151/Difference-between-Variable-and-Parameter
use the attached link to know more about COMSOL
dear Ava Bina if you try to import an equation you should define your independent variable in global definition. it should be noted that if the reflected velocity that you trying to define, is function of fluid velocity you must know that COMSOL recognize these parameters with "u" , "v" , "w" corresponds to vx, vy, vz . if you need further information you can attach your formula here.
kind regards
Morteza
Morteza Safari
I want to know what happens to the velocity (vp) when we change the Cartesian coordinate (x,y,z) to tangent and normal velocity component (t1,t2,n) ?
Does vx change to vt1? How can we prove this?
Beside, I want to add collision equations for the particles physics how is that possible?
Best regards.
Ava Bina can I see the equation that you have mentioned?
about the velocity if you try to use the cartesian coordinate that would be easier,
and about the tangent and normal velocity I think it is dependent to your geometry.
Kind regards
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