A chimera grid schemeA mesh system composed of multiple overset body-conforming grids is described for adapting finite-difference procedures to complex aircraft configurations. In this so-called 'chimera mesh,' a major grid is generated about a main component of the configuration and overset minor grids are used to resolve all other features. Methods for connecting overset multiple grids and modifications of flow-simulation algorithms are discussed. Computational tests in two dimensions indicate that the use of multiple overset grids can simplify the task of grid generation without an adverse effect on flow-field algorithms and computer code complexity.
Document ID
19840028795
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Steger, J. L. (Stanford University Stanford, CA, United States)
Dougherty, F. C. (NASA Ames Research Center Applied Computational Aerodynamics Branch, Moffett Field, CA, United States)
Benek, J. A. (Calspan Field Services, Inc. Arnold Air Force Station, TN, United States)