CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   ANSYS (http://www.cfd-online.com/Forums/ansys/)
-   -   Fluent error (http://www.cfd-online.com/Forums/ansys/107196-fluent-error.html)

jonbonraki September 19, 2012 23:54

Fluent error
 
Dot product of flow direction and area normal is zero.
Check the specified flow direction on Mass Flow Inlet boundary
conditions for thread 8..this was the error i m getting when i m trying to simulate flow of the air in a room to find temperature and velocity profiles.i m new to this software and if its a amateur question..please bear with me

flotus1 September 25, 2012 11:48

A dot product of zero between the face normal vector and the flow vector indicates that they are orthogonal. This way, no flow can enter the domain at this boundary.

Verify the direction vector of your boundary condition and make sure it has a component pointing towards the surface normal vector. I guess you just confused x and y components of the velocity vector.

jonbonraki September 29, 2012 20:07

thanks there


All times are GMT -4. The time now is 15:12.