# user soubroutine of inlet boundary conditions

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 August 24, 2002, 13:34 user soubroutine of inlet boundary conditions #1 Charlie Beghein Guest   Posts: n/a Sponsored Links Hi, I have a question about the user soubroutine of inlet boundary conditions. My problem is unsteady, 3-D turbulent flow(U,V,W,P,K,E,C). There are three boundary(inlet, outlet and wall) in my case. When time is great than 0(zero), I want to change concentration(scalar) value in inlet boundary to average value of concentration in outlet boundary on previous time step. Also I want to keep the rest values(U,V,W,P,K,E) in inlet boundary. The size of inlet and outlet is different. I think it's difficult to introduce cyclic boundary for this problem. How can it be solved this problem? If anyone have good idea for solving this problem, please let me know. Thanks in advance! With best regards, Charlie Beghein

 August 27, 2002, 03:23 Re: user soubroutine of inlet boundary conditions #2 Steve Amphlett Guest   Posts: n/a Try using POSDAT to sample the outlet you're after and pass the values back to BCDEFI in a new named COMMON block (define your own and include it in both routines). HTH - Steve

 August 30, 2002, 02:03 Re: Thanks #3 Charlie Beghein Guest   Posts: n/a Thank you so much. I am trying to that you mentioned. Charlie Beghein

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