Accession Number : AD0749582

Title :   Experimental and Analytical Investigation of Temperature Sensitive Paints.

Descriptive Note : Final rept. May 71-Mar 72,

Corporate Author : LOCKHEED MISSILES AND SPACE CO INC SUNNYVALE, CALIF

Personal Author(s) : Schultz,Howard D.

Report Date : JUN 1972

Pagination or Media Count : 106

Abstract : The report presents the results of a study which consisted to two principal phases: An analytical investigation to extend the validity of the temperature-sensitive coating technique for aerodynamic heating measurement to areas in which known theories do not apply; and A combined analytical and experimental study to develop methods of predicting areas of high thermal gradients in an interfering flow field. Two data reduction computer programs were developed to treat the general two-dimensional case of a finite-slab convectively heated on one or both sides. These programs provide an inverse solution to the two-dimensional transient heat conduction equation with surface heating gradients and variable thermal properties. A three-dimensional shock interference wind tunnel model was designed fabricated and tested. By use of the temperature-sensitive coating technique, heating distributions in the interaction region have been identified in greater detail than is possible by use of thermocouple-instrumented models.

Descriptors :   (*AERODYNAMIC HEATING, MEASUREMENT), TEMPERATURE, COMPUTER PROGRAMS, WIND TUNNEL MODELS, HEAT TRANSFER, SHOCK WAVES, BOUNDARY LAYER, FLOW FIELDS, REENTRY VEHICLES

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE