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An analysis method for multi-component airfoils in separated flowThe multi-component airfoil program (Langley-MCARF) for attached flow is modified to accept the free vortex sheet separation-flow model program (Analytical Methods, Inc.-CLMAX). The viscous effects are incorporated into the calculation by representing the boundary layer displacement thickness with an appropriate source distribution. The separation flow model incorporated into MCARF was applied to single component airfoils. Calculated pressure distributions for angles of attack up to the stall are in close agreement with experimental measurements. Even at higher angles of attack beyond the stall, correct trends of separation, decrease in lift coefficients, and increase in pitching moment coefficients are predicted.
Document ID
19800019807
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Rao, B. M. (Analytical Methods, Inc. Bellevue, WA, United States)
Duorak, F. A. (Analytical Methods, Inc. Bellevue, WA, United States)
Maskew, B. (Analytical Methods, Inc. Bellevue, WA, United States)
Date Acquired
September 4, 2013
Publication Date
August 1, 1980
Subject Category
Aerodynamics
Report/Patent Number
NASA-CR-159300
Accession Number
80N28308
Funding Number(s)
CONTRACT_GRANT: NAS1-15729
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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