Hi @ojagtap, just to clear my comment up I don’t mean to change from steady state to transient, but to ramp the flow rate in the steady state. I use a steady state velocity ramp in this project for compressible simulation:
The same principle can be used for flow rate.
The density-based solver is much more stable and is currently only available in a restricted use case as above mentioned. Please vote here:
Thanks @ronnie007 for mentioning that.
Have a good day,
Darren