Effect of dimples/protrusion concavity on heat transfer performance of rotating channel

In this study, instead of changing the structure of the pin-fin array, the work focused on the design of protrusion/dimple points on the leading and trailing edges. Numerical simulations using the SST (Shear Stress Transport) turbulence model were performed to investigate the effect of dimple/protrusion concavity on flow structure and heat transfer characteristics in a rotating channel with pin-fin array.
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Effect of dimples/protrusion concavity on heat transfer performance of rotating channel