2404 Heat transfer due to annular jet induced by displacer motion
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This paper deals with heat transfer due to a periodical annular jet induced by displacer motion. The heaters are sheets of small foil, one of which was heated as its temperature was kept constant using a CTA system. The distribution of heat transfer coefficient was estimated considering heat flow in the substrate by solving steady heat conduction. It was revealed that the number of nodes where heat transfer coefficients are assumed affects the peak value but does not space averaged value. The space averaged heat transfer coefficient was compared with a correlation for steady impinging jet. The experimental values were about twice higher than that from the correlation.
