Abstract
Simultaneous measurement technique for temperature and velocity fields near a heated solid body has been constructed. The measurement system consists of a 3 plate CCD color camera, a color image grabber, a lighting system, a host computer and a software for the whole quantification process. Thermo Chromic Liquid Crystals (TCLC) was used as temperature sensors. A neural network was used to get a calibration curve between the temperature and the color change of the TCLC in order to enhance the dynamic range of temperature measurement. The velocity field measurement was attained by the use of the gray level images taken for the flow field, and by introducing the cross correlation technique. The temperature and the velocity fields of the forced and the natural convective flows near the surface of a cartridge heater were measured simultaneously with the constructed measurement system.
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