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Subsonic aerodynamic characteristics of interacting lifting surfaces with separated flow around sharp edges predicted by a vortex-lattice methodBecause the potential flow suction along the leading and side edges of a planform can be used to determine both leading- and side-edge vortex lift, the present investigation was undertaken to apply the vortex-lattice method to computing side-edge suction force for isolated or interacting planforms. Although there is a small effect of bound vortex sweep on the computation of the side-edge suction force, the results obtained for a number of different isolated planforms produced acceptable agreement with results obtained from a method employing continuous induced-velocity distributions. By using the method outlined, better agreement between theory and experiment was noted for a wing in the presence of a canard than was previously obtained.
Document ID
19750023950
Document Type
Other - NASA Technical Note (TN)
Authors
Lamar, J. E. (NASA Langley Research Center Hampton, VA, United States)
Gloss, B. B. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
September 1, 1975
Subject Category
AERODYNAMICS
Report/Patent Number
NASA-TN-D-7921
L-10001
Funding Number(s)
PROJECT: RTOP 505-06-14-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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