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Old   November 30, 2010, 11:51
Default Transient stator-rotor interface
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Hi everyone,

I am trying to get a solution for transient stator-rotor simulation. 23 stators, 29 rotors. I am using 1 stator and 1 rotor in the simulation. The initial conditions are taken from the Frozen rotor results. I am having problems at the interface, I guess. My stator wake is not transported into the rotor domain. I am attaching three jpeg images taken at different timesteps, showing the "Velocity in stationary domain" distribution at the mid-span. At the domain interface I am selecting "Transient" option, which I guess is true. But, somewhere I am doing something wrong.

By the way, I am simulating only 1 pitch, and dividing it into 10 time intervals.

SST k-w, with the Gamma-Theta transitional model is applied to the model.

Has anyone of you encountered such a problem?

Thanks in advance,

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Old   November 30, 2010, 14:52
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I also want to add that my domain interface is not perpendicular to the rotation axis. It is inclined. Do you think that it might affect the interaction of the domains?

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Old   December 1, 2010, 02:14
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I am a newbie in CFD, so please excuse me if I am incorrect. I think you should look at the vectors at the interface rather than contours to get a better idea of what is going wrong over there. Also pressure contours will be able to point out the interface issues more clearly ( which would be evident from huge jump in pressures.

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interface, rotor, transient

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