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Numerical calculation of steady inviscid full potential compressible flow about wind turbine bladesThe air flow through a propeller-type wind turbine rotor is characterized by three-dimensional rotating cascade effects about the inner portions of the rotor blades and compressibility effects about the tip regions of the blades. In the case of large rotor diameter and/or increased rotor angular speed, the existence of small supersonic zones terminated by weak shocks is possible. An exact nonlinear mathematical model (called a steady Full Potential Equation - FPE) that accounts for the above phenomena has been rederived. An artificially time dependent version of FPE was iteratively solved by a finite volume technique involving an artificial viscosity and a three-level consecutive mesh refinement. The exact boundary conditions were applied by generating a boundary conforming periodic computation mesh.
Document ID
19800044634
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Dulikravich, D. S.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Subject Category
Energy Production And Conversion
Report/Patent Number
AIAA PAPER 80-0607
Meeting Information
Meeting: Wind Energy Conference
Location: Boulder, CO
Start Date: April 9, 1980
End Date: April 11, 1980
Accession Number
80A28804
Distribution Limits
Public
Copyright
Other

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