This article is cited in 7 papers

Heat and Mass Transfer and Physical Gasdynamics

Flow Structure and Turbulent Heat and Mass Transfer at the Stagnation Point of an Impact Impulse Gas-Droplet Flow

M. A. Pakhomov^a, V. I. Terekhov

^a S.S. Kutateladze Institute of Heat Physics, Siberian Division of the Russian Academy of Sciences

Abstract: Heat transfer in a impulse impact gas–droplet jet was investigated numerically using the Reynolds stress transport model. It is shown that such a flow is characterized by both an increase and a decrease in the heat transfer, as compared to a steady impact gas–droplet flow. It is also shown that, as the frequency of pulses increases, the heat transfer initially increases in comparison to a steady jet, while at higher frequencies, the jet is characterized by a decrease in the heat transfer. An increase in the Reynolds number causes a decrease in the heat transfer intensification, and the Nusselt number distribution for all frequencies approaches the single–phase flow regime.

UDC: 536.24:532.529

Received: 05.07.2013

DOI: 10.7868/S0040364414030211

 English version: High Temperature, 2014, 52:4, 560–567

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