Abstract:In this work, the self-excited oscillating pulsating circular pipe is the object of study. Based on the flow evolution characteristics of boundary layer and vortex, the mechanism of enhanced heat transfer by self-excited oscillating pulsating flow is investigated. Moreover, a vital flow structure, the boundary vortex ring (BVR for short), is proposed. The study results show that the vortex evolution within the shear layer inside the self-excited oscillating pulsating chamber has an important influence on the f… Show more
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