Abstract
Counter-rotating streamwise vortices are known to enhance the heat transfer rate from a surface and also to improve the aerodynamic performance of an aerofoil. In this paper, some methods to generate such counter-rotating vortices using different methods or physical conditions will be briefly considered and discussed.
Highlights
A well known method to enhance the heat transfer rate from a surface or to improve the aerodynamic performance of an aerofoil is by generating counter-rotating streamwise vortices in the surface or aerofoil boundary layer
Caused by centrifugal instability The well known Görtler vortices which occur in concave surface boundary layer flows, as sketched in Fig.1, are a system of counter-rotating streamwise vortices caused by centrifugal instability [1]
The effects of Görtler vortices on boundary layer development, heat transfer and deposition cannot be ignored since concave surfaces exist in many fluid engineering applications
Summary
This content has been downloaded from IOPscience. Please scroll down to see the full text. 88 012001 (http://iopscience.iop.org/1757-899X/88/1/012001) View the table of contents for this issue, or go to the journal homepage for more. Download details: IP Address: 109.171.137.210 This content was downloaded on 06/12/2015 at 06:22 Please note that terms and conditions apply. Series: Materials Science and Engineering 88 (2015) 012001 doi:10.1088/1757-899X/88/1/012001. S H Winoto, H Mitsudharmadi, A C Budiman, S M Hasheminejad, T Nadesan, Tandiono, H T Low, and T S Lee1 1*formerly at National University of Singapore, Singapore 119260, retired. 2formerly at Temasek Laboratory at National University of Singapore, Singapore 117411, at Clean Combustion Research Center, KAUST, Thuwal 23955, Saudi Arabia. S H Winoto, H Mitsudharmadi, A C Budiman, S M Hasheminejad, T Nadesan, Tandiono, H T Low, and T S Lee1 1*formerly at National University of Singapore, Singapore 119260, retired. 1National University of Singapore, Singapore 119260. 2formerly at Temasek Laboratory at National University of Singapore, Singapore 117411, at Clean Combustion Research Center, KAUST, Thuwal 23955, Saudi Arabia. 3Institute of High Performance Computing, Singapore 138632
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