Heat transfer in a channel with built-in wing-type vortex generators

Biswas, G. ; Chattopadhyay, H. (1992) Heat transfer in a channel with built-in wing-type vortex generators International Journal of Heat and Mass Transfer, 35 (4). pp. 803-814. ISSN 0017-9310

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Official URL: http://www.sciencedirect.com/science/article/pii/0...

Related URL: http://dx.doi.org/10.1016/0017-9310(92)90248-Q


An extension of earlier work is made in the present paper to determine numerically the structure of flow and heat transfer characteristics in a rectangular channel with a built-in delta wing protruding from the bottom wall. The predictions are made through the numerical solution of complete Navier-Stokes and energy equations. Augmentation of heat transfer between the flowing fluid and channel wall is seen. The effect of a punched hole, beneath the wing-type vortex generator, on the heat transfer and skin friction characteristics has been determined. The influence of the vortex generator's angle of attack and Reynolds number on heat transfer and skin friction is determined. The combined spanwise average Nusselt number showed increases as large as 34% even at the exit of a long channel at an angle of attack of 26°.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:59896
Deposited On:07 Sep 2011 14:21
Last Modified:07 Sep 2011 14:21

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