Modelling of Unsteady Transition in Low-Pressure Turbine Blade Flows with Two Dynamic Intermittency Equations
作者： Koen Lodefier , Erik Dick
DOI: 10.1007/S10494-005-9007-1
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摘要: A transition model for describing wake-induced is presented based on the SST turbulence by Menter and two dynamic equations intermittency: one near-wall intermittency free-stream intermittency. In Navier-Stokes equations, total factor, which sum of two, multiplies turbulent viscosity computed model. The quality illustrated T106A test cascade Reynolds numbers, using experimental results Stieger Hodson mainly due to kinematic wake impact a separation bubble. also revealed T106D from Hilgenfeld, Stadtmuller Fottner induced transition. cases differ in pitch chord ratio, number inlet intensity, causing different mechanisms. unsteady are space-time diagrams shape factor wall shear stress suction side. show capability capture physics separated state. Inevitable shortcomings as well.
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