Design of low Reynolds number airfoils with trips

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

doi:10.2514/6.2001-2463

Design of low Reynolds number airfoils with trips

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

Aerospace Engineering

Research output: Contribution to conference › Paper › peer-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 language	English (US)
DOIs	https://doi.org/10.2514/6.2001-2463
State	Published - Dec 1 2001
Event	19th AIAA Applied Aerodynamics Conference 2001 - Anaheim, CA, United States Duration: Jun 11 2001 → Jun 14 2001

Other

Other	19th AIAA Applied Aerodynamics Conference 2001
Country/Territory	United States
City	Anaheim, CA
Period	6/11/01 → 6/14/01

ASJC Scopus subject areas

Aerospace Engineering
Mechanical Engineering

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10.2514/6.2001-2463

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title = "Design of low Reynolds number airfoils with trips",

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.",

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doi = "10.2514/6.2001-2463",

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T1 - Design of low Reynolds number airfoils with trips

AU - Gopalarathnam, Ashok

AU - Broughton, Benjamin A.

AU - McGranahan, Bryan D.

AU - Selig, Michael S

PY - 2001/12/1

Y1 - 2001/12/1

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AB - 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.

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Design of low Reynolds number airfoils with trips

Abstract

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