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Development and validation of an advanced low-order panel methodA low-order potential-flow panel code, PMARC, for modeling complex three-dimensional geometries, is currently being developed at NASA Ames Research Center. The PMARC code was derived from a code named VSAERO that was developed for Ames Research Center by Analytical Methods, Inc. In addition to modeling potential flow over three-dimensional geometries, the present version of PMARC includes several advanced features such as an internal flow model, a simple jet wake model, and a time-stepping wake model. Data management within the code was optimized by the use of adjustable size arrays for rapidly changing the size capability of the code, reorganization of the output file and adopting a new plot file format. Preliminary versions of a geometry preprocessor and a geometry/aerodynamic data postprocessor are also available for use with PMARC. Several test cases are discussed to highlight the capabilities of the internal flow model, the jet wake model, and the time-stepping wake model.
Document ID
19890003183
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Ashby, Dale L. (Sterling Federal Systems, Inc., Palo Alto CA., United States)
Iguchi, Steven K. (Sterling Federal Systems, Inc., Palo Alto Calif., United States)
Dudley, Michael (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1988
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-101024
NAS 1.15:101024
A-88275
Accession Number
89N12554
Funding Number(s)
PROJECT: RTOP 505-61-71
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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