LDV Measurement and navier-stokes computation of parallel jet mixing in a rectangular confinement

Robert F. Kunz; Stephen W. D'Amico; Peter F. Vassallo; Michael A. Zaccaria; Hakan Aksoy; Ronald M.C. So

LDV Measurement and navier-stokes computation of parallel jet mixing in a rectangular confinement

Robert F. Kunz, Stephen W. D'Amico, Peter F. Vassallo, Michael A. Zaccaria, Hakan Aksoy, Ronald M.C. So

Mechanical Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

Laser Doppler Vclocimetry (LDV) measurements were taken in a rectangular confinement into which issues a row of parallel jets. Two-component measurements were taken with two optics orientations yielding three mean velocity components and four Reynolds stress components. As observed in isolated three dimensional wall bounded jets, the transverse diffusion of the jets is quite large. The data indicates that this rapid mixing process is due to strong secondary flows, transport of large inlet intensities and Reynolds stress anisotropy effects. Navier-Stokes analyses of this configuration underpredict the rate of transverse jet diffusion. Detailed numerical accuracy studies show that this is attributed to shortcomings in low-Reynolds number two-equation tuibulence modelling. A low-Reynolds number full-Reynolds stress model is shown to provide improvement.

Original language	English (US)
Pages	1-9
Number of pages	9
State	Published - 1995
Event	Fluid Dynamics Conference, 1995 - San Diego, United States Duration: Jun 19 1995 → Jun 22 1995

Other

Other	Fluid Dynamics Conference, 1995
Country/Territory	United States
City	San Diego
Period	6/19/95 → 6/22/95

All Science Journal Classification (ASJC) codes

Aerospace Engineering
Mechanical Engineering
Fluid Flow and Transfer Processes
Energy Engineering and Power Technology

Cite this

@conference{a6e9bbaf9b8045cfb294d7ca989d4cee,

title = "LDV Measurement and navier-stokes computation of parallel jet mixing in a rectangular confinement",

abstract = "Laser Doppler Vclocimetry (LDV) measurements were taken in a rectangular confinement into which issues a row of parallel jets. Two-component measurements were taken with two optics orientations yielding three mean velocity components and four Reynolds stress components. As observed in isolated three dimensional wall bounded jets, the transverse diffusion of the jets is quite large. The data indicates that this rapid mixing process is due to strong secondary flows, transport of large inlet intensities and Reynolds stress anisotropy effects. Navier-Stokes analyses of this configuration underpredict the rate of transverse jet diffusion. Detailed numerical accuracy studies show that this is attributed to shortcomings in low-Reynolds number two-equation tuibulence modelling. A low-Reynolds number full-Reynolds stress model is shown to provide improvement.",

author = "Kunz, {Robert F.} and D'Amico, {Stephen W.} and Vassallo, {Peter F.} and Zaccaria, {Michael A.} and Hakan Aksoy and So, {Ronald M.C.}",

note = "Publisher Copyright: {\textcopyright} 1995 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.; Fluid Dynamics Conference, 1995 ; Conference date: 19-06-1995 Through 22-06-1995",

year = "1995",

language = "English (US)",

pages = "1--9",

}

TY - CONF

T1 - LDV Measurement and navier-stokes computation of parallel jet mixing in a rectangular confinement

AU - Kunz, Robert F.

AU - D'Amico, Stephen W.

AU - Vassallo, Peter F.

AU - Zaccaria, Michael A.

AU - Aksoy, Hakan

AU - So, Ronald M.C.

PY - 1995

Y1 - 1995

N2 - Laser Doppler Vclocimetry (LDV) measurements were taken in a rectangular confinement into which issues a row of parallel jets. Two-component measurements were taken with two optics orientations yielding three mean velocity components and four Reynolds stress components. As observed in isolated three dimensional wall bounded jets, the transverse diffusion of the jets is quite large. The data indicates that this rapid mixing process is due to strong secondary flows, transport of large inlet intensities and Reynolds stress anisotropy effects. Navier-Stokes analyses of this configuration underpredict the rate of transverse jet diffusion. Detailed numerical accuracy studies show that this is attributed to shortcomings in low-Reynolds number two-equation tuibulence modelling. A low-Reynolds number full-Reynolds stress model is shown to provide improvement.

AB - Laser Doppler Vclocimetry (LDV) measurements were taken in a rectangular confinement into which issues a row of parallel jets. Two-component measurements were taken with two optics orientations yielding three mean velocity components and four Reynolds stress components. As observed in isolated three dimensional wall bounded jets, the transverse diffusion of the jets is quite large. The data indicates that this rapid mixing process is due to strong secondary flows, transport of large inlet intensities and Reynolds stress anisotropy effects. Navier-Stokes analyses of this configuration underpredict the rate of transverse jet diffusion. Detailed numerical accuracy studies show that this is attributed to shortcomings in low-Reynolds number two-equation tuibulence modelling. A low-Reynolds number full-Reynolds stress model is shown to provide improvement.

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UR - http://www.scopus.com/inward/citedby.url?scp=84959185522&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84959185522

SP - 1

EP - 9

T2 - Fluid Dynamics Conference, 1995

Y2 - 19 June 1995 through 22 June 1995

ER -

LDV Measurement and navier-stokes computation of parallel jet mixing in a rectangular confinement

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