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-   -   UDF for traction-free boundary condition at outlet (http://www.cfd-online.com/Forums/fluent-udf/69940-udf-traction-free-boundary-condition-outlet.html)

psb November 10, 2009 03:40

UDF for traction-free boundary condition at outlet
 
hi..

How is a traction-free boundary condition implemented using a udf at the outlet of a pipe? The traction-free condition specified in the reference paper is -p+0.0035 (du/dx) = 0. Also the inlet is pressure-inlet with the pressure value specified.


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