Experimental and Analytical Investigation of Temperature Sensitive Paints.
Final rept. May 71-Mar 72,
LOCKHEED MISSILES AND SPACE CO INC SUNNYVALE, CALIF
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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.
- Fluid Mechanics