Effects of surface pressures and streamline metrics on the calculation of laminar heating ratesThe effect of streamline geometry and pressure distributions on surface heating rates is examined for slender, spherically blunted cones. The modifications to the approximate aeroheating code include a curve fit of pressures computed by an Euler solution over a range of Mach numbers and cone angles. The streamline geometry is then found using the surface pressures and inviscid surface properties. Previously, streamlines were determined using the inviscid properties at the edge of the boundary layer when accounting for the effects of entropy-layer swallowing. Streamline calculations are now based on inviscid surface conditions rather than boundary-layer edge properties. However, the heating rates are calculated using inviscid properties at the edge of the boundary layer. Resulting heating rates compare favorably with solutions from the viscous-shock-layer equations.
Document ID
19880056528
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Riley, Christopher J. (North Carolina State Univ. Raleigh, NC, United States)
Dejarnette, Fred R. (North Carolina State University Raleigh, United States)
Zoby, Vincent (NASA Langley Research Center Hampton, VA, United States)