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Using the laminar flow module without setting inlet and outlet

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Hello
I want to use laminar flow module, but I do not want to set inlet and outlet for my system. In the other words, I want to set the boundary condition for velocity on some of walls in my microsystem and then study the surface velocity field in my system by solving Navier-Stokes equation which is in this module.
Although, I set velocity of inlet to zero or use the pressure option in the inlet section and outlet too, but my results has been affected by the position of inlet and inlet I sat and when I disabled these option, I came up with error about the convergence problems…
Is there any solution not to use these options and solve Navier-Stokes equation? Or is there any other modules to study the Navier stokes equation without these options..?
In my real work, the solution is in the closed chamber and there is no inlet and outlet there.
I will be very grateful if anybody can help me
Many thanks in advance for your time and consideration

1 Reply Last Post 2017年8月22日 GMT-4 10:34

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Posted: 7 years ago 2017年8月22日 GMT-4 10:34
Dear Azadeh,

Can you direct your question to support@comsol.com please. Thank you in advance.

Regards,

Yara Soares
Dear Azadeh, Can you direct your question to support@comsol.com please. Thank you in advance. Regards, Yara Soares

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