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

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

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

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 languageEnglish
Title of host publication48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
DOIs
Publication statusPublished - 2010
Event48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Orlando, United States
Duration: 4 Jan 20107 Jan 2010

Conference

Conference48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
CountryUnited States
CityOrlando
Period4/01/107/01/10

Keywords

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

ASJC Scopus subject areas

  • Aerospace Engineering

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  • Cite this

    Early, J. M., 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] https://doi.org/10.2514/6.2010-376