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A boundary element method for the potential, compressible aerodynamics of bodies in arbitrary motion

Published online by Cambridge University Press:  04 July 2016

M. Gennaretti  and
L. Morino
M. Gennaretti
Affiliation:
School of EngineeringUniversity of Rome ‘La Sapienza’Rome, Italy
L. Morino
Affiliation:
School of EngineeringUniversity of Rome ‘La Sapienza’Rome, Italy
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Extract

A new integral equation, and the corresponding boundary-element method, is presented for the aerodynamic analysis of compressible, subsonic, potential flows around bodies in arbitrary motion, with applications to helicopter rotors in hover. The formulation is closely related to that introduced by Morino for the aerodynamic analysis of aircraft: in that paper, the surface of the aircraft is assumed to be in arbitrary motion with respect to a frame of reference that moves in uniform translation. Such a formulation is very useful for the analysis of aircraft undergoing small oscillations with respect to a reference configuration. However, for the analysis of more complex motions (e.g. helicopter rotors in forward flight), it is more convenient to use a frame of reference that moves in arbitrary motion (in particular, for the case of a body moving in rigid-body motion, a frame of reference rigidly connected with the body).

Type
Research Article
Information
The Aeronautical Journal , Volume 96 , Issue 951 , January 1992 , pp. 15 - 19
Copyright
Copyright © Royal Aeronautical Society 1992 

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References

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