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A Study of Laminar Heat Transfer to Spherically Blunted Cones and Hemisphere-Cylinders at Hypersonic Conitions

Report Number: AEDC TDR 63-102
Author: Griffith, B. J.
Author: Lewis, Clark H.
Corporate Author: ARO, Inc.
Date of Publication: 1963-06
Pages: 27
Contract: AF 40(600)-1000
Project: 8951
Task: 895103
AD Number: AD0408568

Abstract:
Heat-transfer distribution data obtained in the arc-driven tunnels (hotshot type) of the von Karman Gas Dynamics Facility, AEDC, are pre sented. Data were taken on a 9-deg half-angle spherically bluqu 17 and 20 and Reynolds numbers per foot in the free-stream between 100,000 and 800,000. The test data are compared with theory and available shock tube and shock tunnel results. Good agreement between Lees' theory and measured heat-transfer rates demonstrates the capability of the VKF hotshot tunnels to obtain heat-transfer distribution data. The data indicate a strong dependence of the heat-transfer distribution on pressure dis tribution, Mach number, and cone half-angle. The heat-transfer data are correlated over a wide range of Mach numbers and cone angles. Correla tion curves and formulas are presented for the pressure and heat-transfer distribution to spherically blunted cones at hypersonic con ditions.


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