In the present study, the influence of the inlet condition on the tip clearance flow of an axial compressor is investigated. Two different zonal detached eddy simulations (ZDES) computations are carried out and compared to Reynolds-averaged Navier–Stokes (RANS) and unsteady RANS (URANS) computations as well as to experimental data. A rotating distortion map of the flow cartography is set as inlet condition for the first ZDES computation. An azimuthally averaged inlet condition is used for the second one and uncouples the rotor tip-leakage vortex flutter phenomenon, which stems from the arrival of the inlet guide vane wake from the behavior inherent to the rotor tip-leakage vortex. In the studied configuration, the inlet guide vane tip vortex reveals to lower the effects from double leakage on the rotor. The topology of the rotor tip-leakage vortex is described, and its development is analyzed.
Inlet Condition Effects on the Tip Clearance Flow With Zonal Detached Eddy Simulation
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the JOURNAL OF TURBOMACHINERY. Manuscript received July 3, 2013; final manuscript received July 8, 2013; published online October 25, 2013. Editor: Ronald Bunker.
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Riéra, W., Castillon, L., Marty, J., and Leboeuf, F. (October 25, 2013). "Inlet Condition Effects on the Tip Clearance Flow With Zonal Detached Eddy Simulation." ASME. J. Turbomach. April 2014; 136(4): 041018. https://doi.org/10.1115/1.4025216
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