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The conformal transformation of an airfoil into a straight line and its application to the inverse problem of airfoil theoryA method of conformal transformation is developed that maps an airfoil into a straight line, the line being chosen as the extended chord line of the airfoil. The mapping is accomplished by operating directly with the airfoil ordinates. The absence of any preliminary transformation is found to shorten the work substantially over that of previous methods. Use is made of the superposition of solutions to obtain a rigorous counterpart of the approximate methods of thin-airfoils theory. The method is applied to the solution of the direct and inverse problems for arbitrary airfoils and pressure distributions. Numerical examples are given. Applications to more general types of regions, in particular to biplanes and to cascades of airfoils, are indicated. (author)
Document ID
19930090919
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Mutterperl, William
Date Acquired
September 6, 2013
Publication Date
December 1, 1944
Report/Patent Number
NACA-ARR-L4K22A
NACA-WR-L-113
Accession Number
93R20209
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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