International Journal of Aerospace and Lightweight Structures

doi: 10.3850/S2010428615100035

Numerical Prediction of Impinging Jet Heat Transfer in a Fairing With Curved Channel

Yan Chen^a and Hui-Ren Zhu School of Power and Energy, Northwestern Polytechnical University, Friendship west road No. 127, Xi’an, 710072, China. ^axjtu chenyan@163.com

ABSTRACT

The realizable k – ε model with wall function, and a low Reynolds number laminar model are used in the numerical prediction on the flow velocity and heat transfer coefficient distribution of five Reynolds numbers of a fairing level impinging jet. The results show that with the increase of Reynolds numbers, flow velocity and heat transfer coefficient distribution are same trend: their magnitudes increase. The curved channel causes significant change of the directions of velocity. Compared with the ordinary impinging, heat transfer effect is increased. The variation trend of the mean heat transfer coefficients is similar between the numerical value and experimental value at five kinds of Reynolds numbers.

Keywords: Impinging jet, Numerical simulation, Heat transfer.

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