Unstructured Euler flow solutions using hexahedral cell refinementAn attempt is made to extend grid refinement into three dimensions by using unstructured hexahedral grids. The flow solver is developed using the TIGER (topologically Independent Grid, Euler Refinement) as the starting point. The program uses an unstructured hexahedral mesh and a modified version of the Jameson four-stage, finite-volume Runge-Kutta algorithm for integration of the Euler equations. The unstructured mesh allows for local refinement appropriate for each freestream condition, thereby concentrating mesh cells in the regions of greatest interest. This increases the computational efficiency because the refinement is not required to extend throughout the entire flow field.
Document ID
19910036951
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Melton, John E. (NASA Ames Research Center Moffett Field, CA, United States)
Cappuccio, Gelsomina (NASA Ames Research Center Moffett Field, CA, United States)
Thomas, Scott D. (Sterling Federal Systems, Inc. Palo Alto, CA, United States)