CFD Online Discussion Forums

CFD Online Discussion Forums (
-   Main CFD Forum (
-   -   get instationary response (

hugdev November 17, 2009 05:14

get instationary response
work on a flow around an airbrake, which in reality has transient solutions. The problem is that cfx always send me the same steady response, even when I lauch the transient mode.
How could I do to get a transient solution, how could I insert the instationarity? are there typical initial conditions, typical boundary conditions to get that kind of transient response?
Thanks for your help

CP85 November 17, 2009 05:28


some things that come into my mind:

Is the mesh fine enough?
Did you try different turbulence-models?
Is the timestep fine enough when performing an instationary solution?
Are the flow velocity and the fluid parameters compareable to reality?

All times are GMT -4. The time now is 11:28.