Author(s)

Y. Noguchi, M.A. Humayun, T. Shiratori

Abstract

A new hybrid scheme for turbulent flow calculations Y. Noguchi', M.A. Humayun*, T. Shiratoif ^School of Aeronautical Engineering University ofSalford, Greater Manchester, UK ^Department of Aerospace Engineering Tokyo Metropolitan Institute of Technology, Japan Abstract A new hybrid scheme to calculate turbulent flows is presented here. The scheme was first reported during the early stages of its development. In this report, more detailed test results are presented. The scheme uses three turbulence models of which each of them is switched on at appropriate flow regions rather than using unnecessarily single complex model for the whole flow region. The tests on two-dimensional transonic flows over an aerofoil are carried out. The scheme showed no deterioration of accuracy in the results and 30 to 40% decrease in computing time when compared with using k-e model alone. This clearly demonstrated the significant potential for the scheme. 1 Introduction Most of the flows for engi

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