CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Urgent : Convective Boundary Condition (http://www.cfd-online.com/Forums/fluent/91386-urgent-convective-boundary-condition.html)

sayans August 9, 2011 08:36

Urgent : Convective Boundary Condition
 
hi, In fluent I need to apply convective boundary condition at outlet.
It will be very helpful if anyone can do this udf.

d(phi)/dt + u*d(phi)/dx = 0

((phi)i,n-(Phi)i,n-1)/dt + u*((phi)i,n-(phi)i-1,n)/dx = 0

i= space index, n= time index, u= outlet boundary normal velocity, dx= space step, dt= time step

http://www.cfd-online.com/Forums/dat...BJRU5ErkJggg==
http://www.cfd-online.com/Forums/dat...BJRU5ErkJggg==


All times are GMT -4. The time now is 15:27.