The complex flow field in turbomachinery poses numerous challenges for turbulence modeling. Herein, results of Laser Doppler Velocimetry (LDV) measurements of a full-scale aeroengine centrifugal compresser are used to validate typical design simulation results using a mixing plane and the k-ε, SST, or RSM-SSG turbulence closure models. Generally good agreement between simulation results and LDV measurements was found. The largest discrepancies were found in the near-wall regions: the predicted boundary layers were thicker and the flow more diffusive than measured. Important differences between the simulation results using different closures are discussed.
Experimental and Numerical Investigation of an Aero-Engine Centrifugal Compressor
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Bourgeois, JA, Martinuzzi, RJ, Roberts, D, Savory, E, & Zhang, C. "Experimental and Numerical Investigation of an Aero-Engine Centrifugal Compressor." Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea, and Air. Volume 7: Turbomachinery, Parts A and B. Orlando, Florida, USA. June 8–12, 2009. pp. 1339-1348. ASME. https://doi.org/10.1115/GT2009-59808
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