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A Method for Determining Cloud-Droplet Impingement on Swept WingsThe general effect of wing sweep on cloud-droplet trajectories about swept wings of high aspect ratio moving at subsonic speeds is discussed. A method of computing droplet trajectories about yawed cylinders and swept wings is presented, and illustrative droplet trajectories are computed. A method of extending two-dimensional calculations of droplet impingement on nonswept wings to swept wings is presented. It is shown that the extent of impingement of cloud droplets on an airfoil surface, the total rate of collection of water, and the local rate of impingement per unit area of airfoil surface can be found for a swept wing from two-dimensional data for a nonswept wing. The impingement on a swept wing is obtained from impingement data for a nonswept airfoil section which is the same as the section in the normal plane of the swept wing by calculating all dimensionless parameters with respect to flow conditions in the normal plane of the swept wing.
Document ID
19810068687
Acquisition Source
Legacy CDMS
Document Type
Other - NACA Technical Note
Authors
Dorsch, Robert G. (National Advisory Committee for Aeronautics. Lewis Flight Propulsion Lab. Cleveland, OH, United States)
Brun, Rinaldo J. (National Advisory Committee for Aeronautics. Lewis Flight Propulsion Lab. Cleveland, OH, United States)
Date Acquired
August 11, 2013
Publication Date
April 1, 1953
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NACA-TN-2931
Accession Number
81N73109
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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