Measured and predicted vortex-induced leeward heating on a biconic at Mach 6 and 10Detailed longitudinal and circumferential heating distributions were measured on a spherically blunted, 13 deg/7 deg biconic at angles of attack from 0 deg to 27 deg. The measurements were made in the Langley 20-inch Mach 6 tunnel and 31-inch Mach 10 tunnel to provide heating distributions at Mach 6 and 10 in air. The free-stream Reynolds number based on model length varied from 0.4 to 4.8 million at Mach 6 and 0.3 to 1.3 million at Mach 10. The basic trends in leeward heating are found to be described by a single parameter, the viscous interaction parameter. A decrease in this parameter results in a decrease in leeward heating for attached flow, an increase in heating for separated flow, and a forward movement of the separation region. The parabolized Navier-Stokes code for laminar flow qualitatively predicted the longitudinal and circumferential heating distributions.
Document ID
19850055524
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Miller, C. G. (NASA Langley Research Center Hampton, VA, United States)
Wilder, S. E. (NASA Langley Research Center Hampton, VA, United States)
Gnoffo, P. A. (NASA Langley Research Center Space Systems Div., Hampton, VA, United States)
Wright, S. A. (NASA Langley Research Center; System Development Corp. Hampton, VA, United States)