DMCA
A 3-D Coupled CFD-DSMC Solution Method With Application To The Mars Sample Return Orbiter (2000)
| Venue: | in Proceedings of the 22nd International Symposium of Rarefied Gas Dynamics, 2000 |
BibTeX
@INPROCEEDINGS{And00a3-d,
author = {Christopher Glass And and Christopher E. Glass and Peter A. Gnoffo},
title = {A 3-D Coupled CFD-DSMC Solution Method With Application To The Mars Sample Return Orbiter},
booktitle = {in Proceedings of the 22nd International Symposium of Rarefied Gas Dynamics, 2000},
year = {2000}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
. A method to obtain coupled CFD-DSMC, 3-D flow field solutions for highly blunt bodies at low incidence is presented and applied to one concept of the Mars Sample Return Orbiter vehicle as a demonstration of the technique. CFD is used to solve the high-density blunt forebody flow defining an inflow boundary condition for a DSMC solution of the afterbody wake flow. By combining the two techniques in flow regions where most applicable, the entire mixed flow field is modeled in an appropriate manner. INTRODUCTION Different computational methods are needed to determine the aerodynamic and aerothermodynamic characteristics along the entire flight trajectory for aerospace vehicles ascending to orbit or descending through an atmosphere to a planet's surface. Predictions at high altitudes corresponding to the rarefied flow regime are usually accomplished using probabilistic methods such as direct simulation Monte Carlo (DSMC) [1], and predictions at lower altitudes corresponding to the ...
Keyphrases
mar sample return orbiter 3-d coupled cfd-dsmc solution method appropriate manner dsmc solution mar sample return orbiter vehicle high altitude inflow boundary condition flow regime flow region probabilistic method entire flight trajectory direct simulation monte carlo entire mixed flow field 3-d flow field solution introduction different computational method low incidence aerothermodynamic characteristic afterbody wake flow blunt body high-density blunt forebody flow coupled cfd-dsmc aerospace vehicle
