Flow visualization of a round jet impinging on cylindrical surfaces

C. Cornaro; A. S. Fleischer; R. J. Goldstein

doi:10.1016/S0894-1777(99)00032-1

Flow visualization of a round jet impinging on cylindrical surfaces

C. Cornaro, A. S. Fleischer, R. J. Goldstein

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

145 Scopus citations

Abstract

Smoke wire flow visualization is used to investigate the behavior of a round jet issuing from a straight tube and impinging on concave and convex surfaces with high relative curvature values. Local velocity and turbulence intensity measurements of the free jet are correlated to the formation of the visualized ordered-flow structures. Visualization of the impinging jet shows the initiation and growth of ring vortices in the jet shear layer and their interaction with the cylindrical surfaces. Effects of relative curvature, nozzle diameter, nozzle-to-surface distance and Reynolds number on the jet flow structure are described.

Original language	English (US)
Pages (from-to)	66-78
Number of pages	13
Journal	Experimental Thermal and Fluid Science
Volume	20
Issue number	2
DOIs	https://doi.org/10.1016/S0894-1777(99)00032-1
State	Published - Oct 1 1999

Keywords

Curved surface
Flow visualization
Jet impingement
Jets
Ring vortex
Vortex

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title = "Flow visualization of a round jet impinging on cylindrical surfaces",

abstract = "Smoke wire flow visualization is used to investigate the behavior of a round jet issuing from a straight tube and impinging on concave and convex surfaces with high relative curvature values. Local velocity and turbulence intensity measurements of the free jet are correlated to the formation of the visualized ordered-flow structures. Visualization of the impinging jet shows the initiation and growth of ring vortices in the jet shear layer and their interaction with the cylindrical surfaces. Effects of relative curvature, nozzle diameter, nozzle-to-surface distance and Reynolds number on the jet flow structure are described.",

keywords = "Curved surface, Flow visualization, Jet impingement, Jets, Ring vortex, Vortex",

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T1 - Flow visualization of a round jet impinging on cylindrical surfaces

AU - Cornaro, C.

AU - Fleischer, A. S.

AU - Goldstein, R. J.

PY - 1999/10/1

Y1 - 1999/10/1

N2 - Smoke wire flow visualization is used to investigate the behavior of a round jet issuing from a straight tube and impinging on concave and convex surfaces with high relative curvature values. Local velocity and turbulence intensity measurements of the free jet are correlated to the formation of the visualized ordered-flow structures. Visualization of the impinging jet shows the initiation and growth of ring vortices in the jet shear layer and their interaction with the cylindrical surfaces. Effects of relative curvature, nozzle diameter, nozzle-to-surface distance and Reynolds number on the jet flow structure are described.

AB - Smoke wire flow visualization is used to investigate the behavior of a round jet issuing from a straight tube and impinging on concave and convex surfaces with high relative curvature values. Local velocity and turbulence intensity measurements of the free jet are correlated to the formation of the visualized ordered-flow structures. Visualization of the impinging jet shows the initiation and growth of ring vortices in the jet shear layer and their interaction with the cylindrical surfaces. Effects of relative curvature, nozzle diameter, nozzle-to-surface distance and Reynolds number on the jet flow structure are described.

KW - Curved surface

KW - Flow visualization

KW - Jet impingement

KW - Jets

KW - Ring vortex

KW - Vortex

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