Effect of three-dimensional surface perturbations on boundary layer transitional characteristics

J. M. Early; H. Medina; R. McRoberts

doi:10.2514/6.2010-376

Effect of three-dimensional surface perturbations on boundary layer transitional characteristics

J. M. Early, H. Medina, R. McRoberts

Queen's University Belfast

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Abstract

The influence of a three-dimensional surface perturbation on the transitional boundary layer has been investigated experimentally. The perturbation height and longitudinal location relative to the leading edge have been varied to represent the effects of moving the location of a joint on a typical aerodynamic surface. The experimental results indicate that while, for most configurations tested, the presence of a surface perturbation reduces the transitional Reynolds number, there are potential benefits to be realised with careful positioning of the rivet joint, promoting an increase in the transition onset location of up to 5%.

Original language	English
Title of host publication	48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
DOIs	https://doi.org/10.2514/6.2010-376
Publication status	Published - 2010
Event	48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Orlando, United States Duration: 4 Jan 2010 → 7 Jan 2010

Conference

Conference	48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
Country/Territory	United States
City	Orlando
Period	4/01/10 → 7/01/10

Keywords

Aerodynamic surfaces
Leading edge
Potential benefits
Surface perturbations
Three-dimensional surface
Transitional boundary layers

ASJC Scopus subject areas

Aerospace Engineering

Access to Document

10.2514/6.2010-376

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Early, JM, Medina, H & McRoberts, R 2010, Effect of three-dimensional surface perturbations on boundary layer transitional characteristics. in 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition., 2010-0376, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Orlando, Florida, United States, 4/01/10. https://doi.org/10.2514/6.2010-376

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title = "Effect of three-dimensional surface perturbations on boundary layer transitional characteristics",

abstract = "The influence of a three-dimensional surface perturbation on the transitional boundary layer has been investigated experimentally. The perturbation height and longitudinal location relative to the leading edge have been varied to represent the effects of moving the location of a joint on a typical aerodynamic surface. The experimental results indicate that while, for most configurations tested, the presence of a surface perturbation reduces the transitional Reynolds number, there are potential benefits to be realised with careful positioning of the rivet joint, promoting an increase in the transition onset location of up to 5%.",

keywords = "Aerodynamic surfaces, Leading edge, Potential benefits, Surface perturbations, Three-dimensional surface, Transitional boundary layers",

author = "Early, {J. M.} and H. Medina and R. McRoberts",

year = "2010",

doi = "10.2514/6.2010-376",

language = "English",

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booktitle = "48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition",

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AU - Early, J. M.

AU - Medina, H.

AU - McRoberts, R.

PY - 2010

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N2 - The influence of a three-dimensional surface perturbation on the transitional boundary layer has been investigated experimentally. The perturbation height and longitudinal location relative to the leading edge have been varied to represent the effects of moving the location of a joint on a typical aerodynamic surface. The experimental results indicate that while, for most configurations tested, the presence of a surface perturbation reduces the transitional Reynolds number, there are potential benefits to be realised with careful positioning of the rivet joint, promoting an increase in the transition onset location of up to 5%.

AB - The influence of a three-dimensional surface perturbation on the transitional boundary layer has been investigated experimentally. The perturbation height and longitudinal location relative to the leading edge have been varied to represent the effects of moving the location of a joint on a typical aerodynamic surface. The experimental results indicate that while, for most configurations tested, the presence of a surface perturbation reduces the transitional Reynolds number, there are potential benefits to be realised with careful positioning of the rivet joint, promoting an increase in the transition onset location of up to 5%.

KW - Aerodynamic surfaces

KW - Leading edge

KW - Potential benefits

KW - Surface perturbations

KW - Three-dimensional surface

KW - Transitional boundary layers

U2 - 10.2514/6.2010-376

DO - 10.2514/6.2010-376

M3 - Conference proceeding

AN - SCOPUS:78649814072

SN - 9781600867392

BT - 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

T2 - 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

Y2 - 4 January 2010 through 7 January 2010

ER -

Effect of three-dimensional surface perturbations on boundary layer transitional characteristics

Abstract

Conference

Keywords

ASJC Scopus subject areas

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