Accession Number : AD0754056

Title :   An Experimental Investigation of Laminar Heat Transfer to Cones at Hypersonic Speeds,

Corporate Author : PRINCETON UNIV N J GAS DYNAMICS LAB

Personal Author(s) : Berry,Carl T. ; Vas,Irwin E. ; Bogdonoff,Seymour M.

Report Date : NOV 1972

Pagination or Media Count : 99

Abstract : The present study was an experimental investigation of the laminar surface heat transfer distribution about cones. The study was conducted in the Princeton University hypersonic nitrogen facility and covered a wide range of geometries and test conditions in an attempt to evaluate the numerical accuracy, theoretical modeling, and range of applicability of the several theories which are available. Cones, varying from 3 degrees to 30 degrees, with two nose bluntnesses, and lengths from one to eight inches were examined over a range of test conditions: Mach numbers from 16 to 25, and unit Reynolds numbers from 7,000 to 40,000 per inch. The detailed heat transfer distributions, covering the full range of 'nose dominated', 'merged', and 'weak interaction' regimes, were compared with several theoretical prediction techniques. A critical review of the modeling involved in the theories, as compared to the experiments, is presented. (Author)

Descriptors :   (*NOSE CONES, HYPERSONIC CHARACTERISTICS), HEAT TRANSFER, FLOW FIELDS, LAMINAR FLOW, HYPERSONIC FLOW, BLUNT BODIES, LAMINAR BOUNDARY LAYER, WIND TUNNEL MODELS

Subject Categories : Guided Missile Dynam, Config & Cntrl Surfaces

Distribution Statement : APPROVED FOR PUBLIC RELEASE