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-   -   Non-nominal conditions in a radial turbine (http://www.cfd-online.com/Forums/fluent/83446-non-nominal-conditions-radial-turbine.html)

Petro December 29, 2010 09:04

Non-nominal conditions in a radial turbine
 
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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