NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A three-dimensional body-fitted coordinate system for flow field calculations on asymmetric nosetipsA three dimensional body-fitted coordinate system developed for use in the calculation of inviscid flows over ablated, asymmetric reentry vehicle nosetips is described. Because of the potential geometric asymmetries, no standard coordinate system (e.g., spherical, axisymmetric reference surface-normal) is capable of being closely aligned with the nosetip surface. To generate a 3-D, body-fitted coordinate system an analytic mapping procedure is applied that is conformal within each meridional plane of the nosetip; these transformations are then coupled circumferentially to yield a three dimensional coordinate system. The mappings used are defined in terms of hinge points, which are points selected to approximate the body contours in each meridional plane. The selection of appropriate hinge points was automated to facilitate the use of the resulting nosetip flow field code.
Document ID
19810006197
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hall, D. W.
(Science Applications, Inc. McLean, VA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Publication Information
Publication: NASA. Langley Research Center Numerical Grid Generation Tech.
Subject Category
Numerical Analysis
Accession Number
81N14711
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available