Simple pressure difference question
Hello everybody,
Kindly help me with a simple question: I have a rectangular tube, with one inlet and one outlet. I want to flow air through that tube. For my BC, I want higher pressure on the inlet and lower pressure on the outlet so that air will flow. My question is, will I need to specify the value of pressure at the internal field? or is specifying the boundary conditions at the inlet and outlet sufficient? please let me know! THAAANKS! :-) |
Please any help would appreciated!
Thank you. |
Hello,
For flows in a channel with inlet and outlet, the following BCs (0 folder) are often used: - inlet: U fixedValue U_0, p zero gradient - outlet: U zero gradient, p fixed value p_0 - internal field: U uniform U_0, p uniform p_0 |
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