A Statistical Analysis of Surface Pressure Measurements with Particular Reference to Vortex Breakdown. G.U. Aero Report 9806

Jupp, M., Coton, F. and Green, R. (1998) A Statistical Analysis of Surface Pressure Measurements with Particular Reference to Vortex Breakdown. G.U. Aero Report 9806. Technical Report. Department of Aerospace Engineering, University of Glasgow.

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Abstract

This paper describes and presents results from static wind tunnel tests conducted on a 60° delta wing at a root chord Reynolds number of 2.7 x 10[sup]6. In these tests, the wing was instrumented with 192 miniature pressure transducers which, in conjunction with a powerful multi-channel data-logging system, allowed the distribution of timevarying surface pressures to be measured at high temporal resolution. Analysis indicates that the distribution of root-mean-square pressure on the leeward surface of the wing can provide considerable insight into the behaviour of both the primary and secondary vortex structures. In addition, it has been established that the frequency content of pressure signals measured in the vicinity of these vortex structures is sensitive to the vortex state. It is suggested that these data features can be directly attributed to previously observed behavioural characteristics of the vortex breakdown process.

Item Type:Research Reports or Papers (Technical Report)
Status:Published
Glasgow Author(s) Enlighten ID:Green, Dr Richard and Coton, Professor Frank
Authors: Jupp, M., Coton, F., and Green, R.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Publisher:Department of Aerospace Engineering, University of Glasgow
Copyright Holders:Copyright © 1998 Department of Aerospace Engineering, University of Glasgow
Publisher Policy:Reproduced with the permission of the Department

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