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
Contract: NNX09CF09P
Agency Tracking Number: 084237
Amount: $99,928.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: A2.06
Solicitation Number: N/A
Small Business Information
9489 E. Ironwood Square Drive, Scottsdale, AZ, 85258-4578
DUNS: 182103291
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Danny Liu
 Principal Investigator
 (480) 945-9988
 danny@zonatech.com
Business Contact
 Jennifer Scherr
Title: Business Official
Phone: (480) 945-9988
Email: jennifer@zonatech.com
Research Institution
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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