UNSPECIFIED (1999) Quantitative visualization of high-speed 3D turbulent flow structures using holographic interferometric tomography. In: International Conference on Optical Methods and Data Processing in Heat and Fluid Flow, APR 16-17, 1998, CITY UNIV LONDON, LONDON, ENGLAND.

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Abstract

Using holographic interferometry the three-dimensional structure of unsteady and large-scale motions within subsonic and transonic turbulent jet flows has been studied. The instantaneous 3D flow structure is obtained by tomographic reconstruction techniques from quantitative phase maps recorded using a rapid-switching, double reference beam, double pulse laser system. The reconstruction of the jets studied here reveal a three-dimensional nature of the flow. In particular an increasing complexity can be seen in the turbulence as the flow progresses from the jet nozzle. Furthermore, a coherent three-dimensional, possibly rotating, structure can be seen to exist within these jets. The type of flow features illustrated here are not just of fundamental importance for understanding the behavior of free jet flows, but are also common to a number of industrial applications, ranging from the combustion flow within an IC engine to the transonic flow through the stages of a gas turbine. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QC Physics
Journal or Publication Title:	OPTICS AND LASER TECHNOLOGY
Publisher:	ELSEVIER SCI LTD
ISSN:	0030-3992
Date:	February 1999
Volume:	31
Number:	1
Number of Pages:	13
Page Range:	pp. 53-65
Publication Status:	Published
Title of Event:	International Conference on Optical Methods and Data Processing in Heat and Fluid Flow
Location of Event:	CITY UNIV LONDON, LONDON, ENGLAND
Date(s) of Event:	APR 16-17, 1998
URI:	http://wrap.warwick.ac.uk/id/eprint/14308

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