Accession Number : AD0620983

Title :   TRANSPIRATION COOLING WITH LIQUID METALS. PART I. EXPERIMENTAL AND ANALYTICAL DETERMINATION OF OPTIMUM COOLING,

Corporate Author : NAVAL ORDNANCE TEST STATION CHINA LAKE CALIF

Personal Author(s) : WOLFSON,Milton R. ; Robinson,Allen T. ; Thielbahr,William H.

Report Date : JUN 1965

Pagination or Media Count : 99

Abstract : An analytical and experimental program was conducted to evaluate a forced flow transpiration cooling system. A two-dimensional heat transfer program was applied to define the individual contributing cooling mechanisms associated with transpiration (i.e., boundary layer three tests were performed on porous tungsten bodies with various infiltrants in a plasma-arc facility. Analytical results were correlated with experimental data. Material and design values were identified for the fabrication of an efficient transpiration cooled structure. (Author)

Descriptors :   (*ROCKET NOZZLES, COOLING), (*LIQUID METAL COOLANTS, IMPREGNATION), (*POROUS METALS, IMPREGNATION), REFRACTORY MATERIALS, TUNGSTEN, PERMEABILITY, HEAT TRANSFER, SILVER, COPPER, TIN, BOUNDARY LAYER, VAPORIZATION, TRANSITION TEMPERATURE

Distribution Statement : APPROVED FOR PUBLIC RELEASE