Computation of internal high-speed separated flow with modified B-L and J-K models

Zhao, Yong; Ding, Zhe

doi:10.1002/(sici)1097-0363(19981115)28:7<1053::aid-fld754>3.0.co;2-m

Cited by 1 publication

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“…These features form an enormous challenge to numerical methods and turbulence models. Reynolds Averaged Navier-Stokes (RANS) numerical analysis of transonic flows was conducted by Johnson, Horstman and Bachalo (1982), Johnson (1985), Sahu and Danberg (1985), Lien and Leschziner (1993), Zhao (1997), Richardson and Qin (1998), Zhao and Ding (1998), Barakos and Drikakis (1998), Zhao and Ding (1999) 2008) conducted combined experimental and numerical study of flow structures over threedimensional shock control bumps. Qin, Wong and LeMoigne (2008) used numerical simulation to design and optimize two and three-dimensional bumps over a RAE 5243 airfoil for wave drag reduction at transonic speeds.…”

Section: Introductionmentioning

confidence: 99%

Turbulent Transonic Flow Over Smooth and Rough Circular Arc Bumps in a Freestream

Mendonca

Sharif

2010

Engineering Applications of Computational Fluid Mechanics

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Turbulent transonic freestream flow over a plane smooth surface embedded with smooth and rough circular arc bumps is computed and analyzed using the   k turbulence model to determine the global effect of surface roughness on the shock/boundary layer interaction. Computations are done for various freestream Mach numbers, equivalent sand grain surface roughness heights of the bump, and radius of the bump. The influence of the increase in surface roughness height transcends over onto the shock boundary layer zone and the observations are discussed. It is observed that the surface roughness causes upstream movement of the shock, increases the skin friction coefficient, extends the separation length, reduces the pre-shock Mach number, and enhances the shock/boundary layer interaction zone.

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