CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Stall Average Forces (http://www.cfd-online.com/Forums/fluent/49486-stall-average-forces.html)

Kai Wohlfahrt October 12, 2008 06:41

Stall Average Forces
 
I am simulating the flow over a wing at several angles of attack, including some for beyond the stall angle. I have set my flow condition to unsteady as this requires (correct me if I am wrong here please!).

Now my force monitors vary up and down around a certain value, and I'd like to get an average over several seconds so I can compare the values at different angles more easily. How can I do this?

Thanks, Kai

Kai Wohlfahrt October 14, 2008 06:34

Continuity Convergence
 
I've gone ahead with the simulation anyways, and taken values from the graph.

However, I have a problem that even though the solution converges fine watching the force plots, my residuals (continuity) don't converge. Is this a serious issue or can I ignore it?

I only have one circular boundary around the entire setup set to velocity inlet to give a flow, so this might be causing a continuity problem?

Kai


All times are GMT -4. The time now is 13:46.