Rotating frames for Turbomachine
Hello, I am looking for litreture on rotating frames for rotor stator interaction of turbo machines. I precisely want to know how we will calculate the fluxes at the block interface, when one block is moving and other stationary. I am using multiblock algorithm and using cartesian coordinate system instead of cylindrical coordinates. Please guide me on the above problem, I have gone through a lot of Papers, but I could not get the information about inteface flux calculation. Please also guide me on the numbering of the blocks when pitch is notsame for stator & rotor.

Re: Rotating frames for Turbomachine
(1). for steady state 3D, look under J.D. Denton or W.N. Dawes in ASME paper or Journal of Turbomachinery, (2). for transient 3D, look for papers from NASA/Ames or NASA/Lewis research laboritories,(3). some commercial codes may have options to deal such boundary conditions. (4) it is a very specific problem and you need to find the right papers. But, the above two types of conditions are fairly common in multistage turbomachinery calculations. ( don't ask me for the details) By the way, you can also look into VKI publications.

Re: Rotating frames for Turbomachine
Hi,
These two papers might be of interest... Perng, Murthy , 'A sliding mesh technique for simulation of flow in mixing tanks', Proc. ASME Winter Annual Meeting, New Orleans, 1993, pp 19. Arnone, Pacciani, Sestini, 'Multigrid computations of unsteady rotor stator interaction using the NavierStokes equations', J. Fluid Engng., 117, pp 647652 (1995). Regards, franck 
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