Heat transfer measurements and CFD comparison of swept shock wave/boundary-layer interactionsAn experimental research program providing basic knowledge and establishing new data on the heat transfer in swept shock wave/boundary-layer interactions is described. An equilibrium turbulent boundary-layer on a flat plate is subjected to impingement by swept planar shock waves generated by a sharp fin. Five different interactions with fin angles ranging from 10 to 20 deg at freestream Mach numbers of 3.0 and 4.0 produce a variety of interaction strengths from weak to very strong. A foil heater generates a uniform heat flux over the flat plate surface and miniature thin-film-resistance sensors mounted on it are used to measure the local surface temperature. The heat convection equation is then solved for the heat transfer distribution within an interaction, yielding a total uncertainty of about +/- 10 percent. These experimental data are compared with the results of numerical Navier-Stokes solutions which employ a kappa-epsilon turbulence model. Finally, a simplified form of the peak heat transfer correlation for fin interactions is suggested.
Document ID
19920071486
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lee, Y. (NASA Ames Research Center Moffett Field, CA, United States)
Settles, G. S. (Pennsylvania State University University Park, United States)
Horstman, C. C. (NASA Ames Research Center Moffett Field, CA, United States)