Panel method for counter rotating propellers
Abstract
A time domain source-doublet surface paneling method based on Green's theorem is developed for analyzing the unsteady loads on a coupled counter rotating propellers in incompressible irrotational flow. A scheme for treating the blade-wake interaction problem is described. Some results for rectilinearly moving wing and single rotation propellers as well as counter rotation propellers are given, with comparisons to alternate theories and experiments. Both quasi steady and fully unsteady loads on different counter rotating systems are presented. The validity of the current model is further tested by other models. The blade-blade and blade-wake interactions involved in the fully unsteady computational problem are discussed. The prediction of unsteady loadings on counter rotation system should be useful for further aeroelastic and aeroacoustic analysis.
Degree
Ph.D.
Advisors
Williams, Purdue University.
Subject Area
Aerospace materials
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