Acceleration and deceleration of coherent structures in the initial shear layers of laminar circular jets

K. K. Chow; Shiu Keung Tang; N. W.M. Ko

doi:10.1088/0169-5983/41/3/035001

Acceleration and deceleration of coherent structures in the initial shear layers of laminar circular jets

K. K. Chow, Shiu Keung Tang, N. W.M. Ko

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

Abstract

The acceleration and deceleration of the shear layer mode coherent structures in the initial shear layers of two initially laminar subsonic circular air jets were measured by a novel method employing three hot-wires and the structure capturing scheme of the conditional sampling technique. Several modes of pairing, some of them axisymmetric and others involving tilted flow structures, were established and confirmed by flow visualization.

Original language	English
Article number	035001
Journal	Fluid Dynamics Research
Volume	41
Issue number	3
DOIs	https://doi.org/10.1088/0169-5983/41/3/035001
Publication status	Published - 4 Jun 2009

ASJC Scopus subject areas

Mechanical Engineering
General Physics and Astronomy
Fluid Flow and Transfer Processes

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10.1088/0169-5983/41/3/035001

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title = "Acceleration and deceleration of coherent structures in the initial shear layers of laminar circular jets",

abstract = "The acceleration and deceleration of the shear layer mode coherent structures in the initial shear layers of two initially laminar subsonic circular air jets were measured by a novel method employing three hot-wires and the structure capturing scheme of the conditional sampling technique. Several modes of pairing, some of them axisymmetric and others involving tilted flow structures, were established and confirmed by flow visualization.",

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AB - The acceleration and deceleration of the shear layer mode coherent structures in the initial shear layers of two initially laminar subsonic circular air jets were measured by a novel method employing three hot-wires and the structure capturing scheme of the conditional sampling technique. Several modes of pairing, some of them axisymmetric and others involving tilted flow structures, were established and confirmed by flow visualization.

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Acceleration and deceleration of coherent structures in the initial shear layers of laminar circular jets

Abstract

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