Transient blade row simulation -- CFD Online Discussion Forums

October 9, 2018, 03:20

Transient blade row simulation

Julian121

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Join Date: Aug 2012

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I am doing a transient blade row simulation to calculate pressure ratio of an axial compressor.
After five passing periods, the pressure ratio does not show any periodic behavior.
I used 40 time steps per period to pass initial transients. Now I use 60 time steps.
Should I continue the simulation to get periodic behavior? Can a mesh issue cause this problem?

Attached Images

	Residuals.jpg (138.1 KB, 20 views)
	Pressure ratio.jpg (128.4 KB, 10 views)

Last edited by Julian121; October 9, 2018 at 05:48.

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