Design of low Reynolds number airfoils with trips

Ashok Gopalarathnam, Benjamin A. Broughton, Bryan D. McGranahan, Michael S Selig

Research output: Contribution to conferencePaperpeer-review

Abstract

A design philosophy is presented for low Reynolds number airfoils that judiciously combines the tailoring of the airfoil pressure distribution using a transition ramp with the use of boundary-layer trips. Three airfoils with systematic changes to the shape of the transition ramp have been designed to study the effect of trips on the airfoil performance. The airfoils were wind-tunnel tested with various trip locations and at Reynolds numbers of 100,000 and 300,000 to assess the effectiveness of the design philosophy. The results show that the design philosophy was successfully used in integrating a boundary-layer trip from the outset in the airfoil design process. At the Reynolds numbers and the range of airfoil shapes considered, however, airfoils designed with trips do not hold any clear advantage over airfoils designed for good performance in the clean condition.

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 2001
Event19th AIAA Applied Aerodynamics Conference 2001 - Anaheim, CA, United States
Duration: Jun 11 2001Jun 14 2001

Other

Other19th AIAA Applied Aerodynamics Conference 2001
CountryUnited States
CityAnaheim, CA
Period6/11/016/14/01

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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