Heat transfer from a hemisphere-cylinder equipped with flow-separation spikes

Jackson R. Stalder, Helmer V. Nielsen
naca-tn-3287
Sep 1954


Average heat-transfer, temperature-recovery, and pressure-distribution measurements were obtained over the hemispherical nose of a body of revolution both with and without flow-separation spikes. The tests, conducted in a range of Reynolds numbers from 1.55 to 9.85 x 10(5) and from Mach number 0.12 to 5.04, indicated that in supersonic flow the addition of spikes approximately doubles the rate of heat transfer, regardless of spike length.

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