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http://dx.doi.org/10.3795/KSME-B.2005.29.6.653

A Numerical Study on the Heat Transfer Characteristics of Impinging Jet Flow in the Presence of Applied Magnetic Fields  

Lee Hyun Goo (LG전자 에어컨 연구소)
Yoon Hyun Sik (부산대학교 첨단조선공학연구센터)
Hong Seung Do (부산대학교 대학원 기계공학과)
Ha Man Yeong (부산대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.29, no.6, 2005 , pp. 653-661 More about this Journal
Abstract
The present study numerically investigates two-dimensional fluid flow and heat transfer ir the confined jet flow in the presence of applied magnetic field. For the purpose of controlling vortex shedding and heat transfer, numerical simulations to calculate the fluid flow and heat transfer in the confined jet are performed for different Reynolds numbers in the absence and presence of magnetic fields and for different Prandtl numbers of 0.02 (liquid metal), 0.7 (air) and 7 (water) in the range of $0{\le}N{\le}0.05$, where N is the Stuart number (interaction parameter) which is the ratio of electromagnetic force to inertia force. The present study reports the detailed information of flow and thermal quantities in the channel at different Stuart numbers. As the intensity of applied magnetic fields increases, the vortex shedding formed in the channel becomes weaker and the oscillating amplitude of impinging jet decreases. The flow and thermal fields become the steady state if the Stuart number is greater than the critical value. Thus the Nusselt number at the stagnation point representing the heat transfer characteristics also vary as a function of Stuart number.
Keywords
Impinging Jet; MHD; Heat Transfer; Stuart Number;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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