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Keywords: wall roughnessClose
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A042, July 13–15, 2020
Paper No: FEDSM2020-20257
... the step, distinct elevated regions of the Reynolds stresses, eddy viscosity and correlation coefficient are observed in both cases with the peak values at a vertical location corresponding to the maximum elevation of the mean separating streamline. THE EFFECTS OF UPSTREAM WALL ROUGHNESS ON SEPARATED...
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A043, July 13–15, 2020
Paper No: FEDSM2020-20258
... boundary layer thicknesses were 4.3 and 6.7 times the step height in the smooth and fully rough wall cases, respectively. The Reynolds number based on the step height and free-stream velocity was 7800. The effects of upstream wall roughness on the instantaneous separated shear layer, frequency spectra...
Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1875-1887, August 2–6, 2009
Paper No: FEDSM2009-78090
...: drag, gravity-buoyancy and lift forces (slip-shear and slip-rotational). Moreover, interparticle and particle-rough wall collisions are taken into account by means of stochastic approaches. The effect of the different mechanisms, i.e. wall roughness, inter-particle collisions and mass loading...