Experimental Study and Conjugate Heat Transfer Simulation of Pulsating Flow in Straight and 90° Curved Square Pipes

The turbulent pulsating flow and heat transfer in straight 90° curved square pipes are investigated this study. Both experimental temperature field measurements at the cross-sections of conjugate (CHT) simulation were performed. steady was compared to under same time-averaged Reynolds number. number flow, as well approximately 60,000. Womersley 43.1, corresponding a 30 Hz frequency. Meanwhile, Dean pipe 31,000. results showed that local flux greater than when location closer upstream pulsation generator. However, total less flow. Moreover, instantaneous velocity fields used demonstrate mechanism behaviors, such obvious separation between air wall, low-temperature core impingement, reverse suppress transfer.