Drag reduction on grooved cylinders in the critical Reynolds number regime

Steven J. Quintavalla; Alexander J. Angilella; Alexander J. Smits

doi:10.1016/j.expthermflusci.2013.01.018

Drag reduction on grooved cylinders in the critical Reynolds number regime

Steven J. Quintavalla, Alexander J. Angilella, Alexander J. Smits

Mechanical & Aerospace Engineering

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

55 Scopus citations

Abstract

Experiments show that significant drag reductions may be realized for circular cylinders in cross-flow by using grooves, even at very shallow relative groove depths. It is demonstrated that the total groove area has a significant effect on reducing the critical Reynolds number, whether the area is increased through changing the groove shape, width, or depth. A strong correspondence to the minimum drag coefficient is also observed.

Original language	English (US)
Pages (from-to)	15-18
Number of pages	4
Journal	Experimental Thermal and Fluid Science
Volume	48
DOIs	https://doi.org/10.1016/j.expthermflusci.2013.01.018
State	Published - Jul 2013

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Nuclear Energy and Engineering
Aerospace Engineering
Mechanical Engineering
Fluid Flow and Transfer Processes

Keywords

Critical Reynolds number
Cylinder drag
Drag reduction
Grooved cylinders
Rough cylinders

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10.1016/j.expthermflusci.2013.01.018

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title = "Drag reduction on grooved cylinders in the critical Reynolds number regime",

abstract = "Experiments show that significant drag reductions may be realized for circular cylinders in cross-flow by using grooves, even at very shallow relative groove depths. It is demonstrated that the total groove area has a significant effect on reducing the critical Reynolds number, whether the area is increased through changing the groove shape, width, or depth. A strong correspondence to the minimum drag coefficient is also observed.",

keywords = "Critical Reynolds number, Cylinder drag, Drag reduction, Grooved cylinders, Rough cylinders",

author = "Quintavalla, {Steven J.} and Angilella, {Alexander J.} and Smits, {Alexander J.}",

note = "Funding Information: The authors would like to thank Mr. Michael Vocaturo for his time and patience in helping to set up the experiments, and the USGA for funding the research. Copyright: Copyright 2013 Elsevier B.V., All rights reserved.",

year = "2013",

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doi = "10.1016/j.expthermflusci.2013.01.018",

language = "English (US)",

volume = "48",

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journal = "Experimental Thermal and Fluid Science",

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T1 - Drag reduction on grooved cylinders in the critical Reynolds number regime

AU - Quintavalla, Steven J.

AU - Angilella, Alexander J.

AU - Smits, Alexander J.

N1 - Funding Information: The authors would like to thank Mr. Michael Vocaturo for his time and patience in helping to set up the experiments, and the USGA for funding the research. Copyright: Copyright 2013 Elsevier B.V., All rights reserved.

PY - 2013/7

Y1 - 2013/7

N2 - Experiments show that significant drag reductions may be realized for circular cylinders in cross-flow by using grooves, even at very shallow relative groove depths. It is demonstrated that the total groove area has a significant effect on reducing the critical Reynolds number, whether the area is increased through changing the groove shape, width, or depth. A strong correspondence to the minimum drag coefficient is also observed.

AB - Experiments show that significant drag reductions may be realized for circular cylinders in cross-flow by using grooves, even at very shallow relative groove depths. It is demonstrated that the total groove area has a significant effect on reducing the critical Reynolds number, whether the area is increased through changing the groove shape, width, or depth. A strong correspondence to the minimum drag coefficient is also observed.

KW - Critical Reynolds number

KW - Cylinder drag

KW - Drag reduction

KW - Grooved cylinders

KW - Rough cylinders

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SN - 0894-1777

VL - 48

SP - 15

EP - 18

JO - Experimental Thermal and Fluid Science

JF - Experimental Thermal and Fluid Science

ER -

Drag reduction on grooved cylinders in the critical Reynolds number regime

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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