Civil and Environmental Engineering Publications

Effects of vortex organization on heat transfer enhancement by Gortler instability

Document Type

Article

Publication Date

2004

Journal

INTERNATIONAL JOURNAL OF THERMAL SCIENCES

Volume

43

Issue

8

First Page

753

URL with Digital Object Identifier

https://doi.org/10.1016/j.ijthermalsci.2004.02.015

Last Page

760

Abstract

Gortler vortices, which appear due to streamline curvature in a boundary layer, drastically modify the momentum and heat-transfer properties of the boundary layer. Gortler instability and, as such, heat transfer enhancement by Gortler instability are dependent on initial conditions. In particular, the upstream perturbation wavelength affects downstream nonlinear enhancement of the heat-transfer rate. In this paper we investigate this effect and show that the shorter wavelengths of the upstream perturbations increase the heat-transfer rate of nonlinear Gortler vortices. (C) 2004 Elsevier SAS. All rights reserved.

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