A concurrent hybrid Navier-Stokes/Euler approach to fluid dynamic computationsWe present a methodology for the numerical simulation of flow fields by the simultaneous application of two distinct approaches to computational aerodynamics. We compute the three dimensional flow field of a missile at moderate angle of attack by dividing the flow field into two regions: a region near the surface where we use a structured grid and a Navier Stokes solver, and a region farther away from the surface where we utilize an unstructured grid and an Euler solver. The two solvers execute as independent UNIX processes either on the same machine or on two machines. The solvers communicate data across their common interfaces within the same machine or over the network. The computations indicate that extensively separated flow fields can be computed without significant distortion by combining viscous and inviscid solvers.
Document ID
19930040868
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tavella, Domingo A. (NASA Ames Research Center Moffett Field, CA, United States)
Djomehri, M. J. (NASA Ames Research Center Moffett Field, CA, United States)
Kislitzin, Katherine T. (NASA Ames Research Center Moffett Field, CA, United States)
Blake, Matthew W. (NASA Ames Research Center Moffett Field, CA, United States)
Erickson, Larry L. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 93-0789
Meeting Information
Meeting: AIAA, Aerospace Sciences Meeting and Exhibit