Abstract
The effect of a radial change in the wall temperature on heat transfer in centrifugal turbulent flow in a gap between parallel rotating disks is investigated. Cases of positive, approximately constant, and negative radial gradients of the disk temperature are considered. The results of calculating by the integral method are in good agreement with the known experiments. It is shown that the change in the wall temperature has an insignificant effect in the region of the source and a determining effect in the Ekman layers, finally giving rise to a zone with return heat flux at the periphery of the cavity with negative and approximately constant gradients of the disk temperature.
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Shevchuk, I.V. Effect of wall-temperature distribution on heat transfer in centrifugal flow in the gap between parallel rotating disks. J Eng Phys Thermophys 72, 896–899 (1999). https://doi.org/10.1007/BF02699412
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DOI: https://doi.org/10.1007/BF02699412