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Non-nominal conditions in a radial turbine

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Old   December 29, 2010, 09:04
Default Non-nominal conditions in a radial turbine
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Pedro Nunes
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Hello there!

I'm simulating a radial turbine.

For nominal conditions (no angle of incidence) the calculations perform well.

When i switch to non-nominal conditions (with a bit of incidence), the results are unrealistic (the efficiency is higher than for the ideal case). I also have to decrease the under-relaxation factors to obtain convergence.
Should I use a unsteady simulation to predict vortex shedding?
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