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WIND: Computer program for calculation of three dimensional potential compressible flow about wind turbine rotor bladesA computer program is presented which numerically solves an exact, full potential equation (FPE) for three dimensional, steady, inviscid flow through an isolated wind turbine rotor. The program automatically generates a three dimensional, boundary conforming grid and iteratively solves the FPE while fully accounting for both the rotating cascade and Coriolis effects. The numerical techniques incorporated involve rotated, type dependent finite differencing, a finite volume method, artificial viscosity in conservative form, and a successive line overrelaxation combined with the sequential grid refinement procedure to accelerate the iterative convergence rate. Consequently, the WIND program is capable of accurately analyzing incompressible and compressible flows, including those that are locally transonic and terminated by weak shocks. The program can also be used to analyze the flow around isolated aircraft propellers and helicopter rotors in hover as long as the total relative Mach number of the oncoming flow is subsonic.
Document ID
19800024849
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Dulikravich, D. S. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
October 1, 1980
Subject Category
Aerodynamics
Report/Patent Number
NASA-TP-1729
E-474
Accession Number
80N33357
Funding Number(s)
PROJECT: RTOP 505-32
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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