Accession Number : AD0479543

Title :   CORRELATION OF LAMINAR SKIN-FRICTION CALCULATIONS.

Descriptive Note : Technical publication,

Corporate Author : NAVAL ORDNANCE TEST STATION CHINA LAKE CA

Personal Author(s) : Hall, Patrick H.

Report Date : MAR 1966

Pagination or Media Count : 52

Abstract : Current methods available for the correlation of flat-plate laminar skin-friction solutions are compared with each other and with exact numerical solutions and found to be considerably in error, especially at high Mach numbers. The average enthalpy is calculated exactly by numerical integration of boundary-layer profiles and found to agree with exact reference enthalpy calculations for the case of an adiabatic wall. A correlation expression based on the average enthalpy modified to account for heat-transfer rate is proposed and found to give excellent agreement with exact solutions including the case of a dissociated real gas. The flat-plate correlation expression is found to give good agreement with pressure-gradient solutions. (Author)

Descriptors :   (*SKIN FRICTION, LAMINAR BOUNDARY LAYER), (*AERODYNAMIC HEATING, SKIN FRICTION), CORRELATION TECHNIQUES, ENTHALPY, HEAT TRANSFER, PRESSURE, FLAT PLATE MODELS, NUMERICAL ANALYSIS, MOMENTUM, BOUNDARY LAYER, LAMINAR FLOW, STAGNATION POINT, TEMPERATURE, NUMERICAL INTEGRATION, COMPRESSIBLE FLOW, SUPERSONIC FLOW, HYPERSONIC FLOW.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE