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Turbulence and Shear Flow Phenomena -1 First International Symposium

ISBN:
1-56700-135-1 (Print)

APPLICATION OF TURBULENCE FILTER METHOD TO EXPERIMENTALLY FORCED JET FLOWS

Tamer Yilmaz
Naval Architecture and Marine Engineering Department, Yildiz Technical University, 34349 Beşiktaş,, İstanbul, TURKEY

Huseyin Yilmaz
Department of Naval Architecture, Yildiz Technical University, 80750 Yildiz, Istanbul, Turkey

Abstract

The organised structures of an experimentally forced circular jet were investigated utilising the Turbulence Filter method in this paper. The jet velocities were measured at the various axial distances and different Reynolds numbers. The jet flow was forced mechanically in triangular form. Hot-wire anemometer technique was used to acquire velocities. A new decomposition technique was used for decomposing unsteady turbulent flow into their unsteady organised and turbulent components, which appears to offer some significant advantages over existing ones. The method is significantly more general than the phase average in its applicability and makes more efficient use of available data.