A Unified Multi-Dimensional Gaskinetic Hybrid BGK-DSMC Method for Nonequilibrium and Chemically Reacting Flows

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,928.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
NNX09CF09P
Award Id:
90804
Agency Tracking Number:
084237
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
9489 E. Ironwood Square Drive, Scottsdale, AZ, 85258
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
182103291
Principal Investigator:
Danny Liu
Principal Investigator
(480) 945-9988
danny@zonatech.com
Business Contact:
Jennifer Scherr
Business Official
(480) 945-9988
jennifer@zonatech.com
Research Institute:
n/a
Abstract
A consistent and accurate Hybrid gaskinetic BGK and DSMC method, valid in the full Knudsen number (Kn) range, is proposed as a 3D tool to handle hypersonic aerothermodynamics from continuum to thermochemical nonequilibrium and ionized/plasma flows. By domain-decomposition, the proposed method will provide adjoint but automated sub-domain solutions by solving the gaskinetic BGK method of Xu (BGKX) and DSMC in their respective low and high Knudsen regimes, therein the BGKX and DSMC solvers have been proven comparatively efficient for thermo-chemical nonequilibrium flows with accurate heat rate prediction. The proposed approach is considered an advancement in rarefied gasdynamic methodology in that: BGKX is efficient for near continuum flows, say 0

* information listed above is at the time of submission.

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