Correlations of velocity and temperature fluctuations in the stagnation-point flow of circular cylinder in turbulent flowThe present analyses of boundary layer flow and turbulence transport attempt to characterize the influence of freestream turbulence on the surface heat-transfer rate and stagnation point region skin friction of a circular cross-section cylinder in turbulent flow. The Reynolds stress-transport equations and k-epsilon two-equation turbulence modeling are used, yielding time-averaged turbulence double-correlations, mean-flow properties, surface heat-transfer rate, and skin-friction with freestream isotropic turbulence. A comparison of analytical results with experimental data indicates that large Reynolds normal stresses are induced at the boundary layer edge by the kinetic energy of the turbulence.
Document ID
19890047556
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wang, C. R. (NASA Lewis Research Center Cleveland, OH, United States)