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<p>Experimental work was performed to study the convective heat transfer characteristics from a cylinder in a strong      zero-mean oscillatory flow represented by an acoustic field. Two different flow regimes are discussed; that in which      laminar, attached flow around the cylinder is present, and that in which instabilities, such as vortex shedding occur.      The experiment utilizes a steady state measurement method. A transition from the laminar to the unstable regime      was observed to occur at a streaming Reynolds number of approximately 240. Within the laminar regime, the      transition from 'intermediate' to 'large' values of the streaming Reynolds number occurs at approximately 130. Heat      transfer results for large values of the streaming Reynolds number in the laminar regime closely match the present      theory (less than 13% error). Correlations were developed to relate the heat transfer rate to the streaming      Reynolds number in the unstable regime. This work would find application in the design of heat exchangers for a      thermoacoustic engine.
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<br>Subjects:</div>
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Harder, Donald R.</div>
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