I'm trying to study the flow inside a vacuum chamber with flowrks, and so far I had some success if I work at atmospheric pressure.
My problem is the setting of the boundary conditions!
I have 2 gas "volume inlets", and an outlet which I usually set as "static pressure outlet". This way I get an acceptable result. But since I want to work in vaccum, I need no set the outlet as a "volume outlet" with a certain value. When I do this, the program says that it's necessary to have a "pressure" boundary condition for the simulation to run, but I don't know how I can set this one...
I believe that if I set the internal wall of the chamber as a "pressure" condition, I might be able to solve this problem, but I don't know if it is a "total pressure" or a "statit pressure". Another thing is that this setting requires me to enter a value for the pressure boundary, but it's easy to see that the pressure won't be constant, which poses another doubt...
Can anyone help me with this?
My problem is the setting of the boundary conditions!
I have 2 gas "volume inlets", and an outlet which I usually set as "static pressure outlet". This way I get an acceptable result. But since I want to work in vaccum, I need no set the outlet as a "volume outlet" with a certain value. When I do this, the program says that it's necessary to have a "pressure" boundary condition for the simulation to run, but I don't know how I can set this one...
I believe that if I set the internal wall of the chamber as a "pressure" condition, I might be able to solve this problem, but I don't know if it is a "total pressure" or a "statit pressure". Another thing is that this setting requires me to enter a value for the pressure boundary, but it's easy to see that the pressure won't be constant, which poses another doubt...
Can anyone help me with this?