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CSimental June 9, 2013 21:22

Correct boundary conditions
Hi, I'm currently working in the assessment of turbulence models for turbomachinery, specifically for turbines, and I have a problem about what boundary conditions will be the more adecuate to be used in order to get accurate results with the available data I have.

The main objective of my work is to predict the stagnation pressure loss coefficient through a stator blade. For this I'll be using the VKI LS89 test case.

Usually for this kind of tests I use mass flow inlet and pressure outlet considering that oftenly I have enough inlet and outlet data, but for this case I just have Outlet isentropic Mach number, Outlet isentropic Reynolds number, Turbulence intensity, Inlet stagnation temperature and inlet stagnation pressure, outlet loss coefficient and outlet flow angle.

As shown in page 57 of the presented technical note.

So I don't really know which kind of boundary conditions will help me the most for my test cases.



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