Multiscale GasKinetics/Particle (MGP) Simulation for Rocket Plume/Lunar Dust Interactions

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX09CF71P
Agency Tracking Number: 080048
Amount: $99,952.00
Phase: Phase I
Program: STTR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: T7.01
Solicitation Number: N/A
Small Business Information
ZONA Technology, Inc.
9489 E. Ironwood Square Drive, Scottsdale, AZ, 85258-4578
DUNS: 182103291
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Chunpei Cai
 Principal Investigator
 () -
Business Contact
 Jennifer Scherr
Title: Business Official
Phone: (480) 945-9988
Research Institution
 Regents of New Mexico State University
 Not Available
 MSC PSL, P.O. Box 30002
Las Cruces, NM, 88003
 (575) 646-4502
 Domestic nonprofit research organization
A Multiscale GasKinetic/Particle (MGP) computational method is proposed to simulate the plume-crater-interaction/dust-impingement(PCIDI) problem. The MGP method consists of a multiscale gaskinetic (MG) method for gasdynamics of rocket plume-in-vacuum flowfield, an Overlay method for gas-particle interaction. MG combines BGK Gaskinetics (BGK) and direct simulation Monte Carlo (DSMC) methods with a domain decomposition technique to account for various scales of rarefied gasdynamics, covering continuum to free-molecular regimes. The dust particles are modeled by an additional distribution function in BGK, thus carried by the MG-generated flowfield through an overlay method. Dust properties are to be modeled using Discrete Element Method (DEM) simulation, which will lead to comprehensive continuum equations for crater formation. Phase II will extend the present MGP method to 3D, with more advanced dust particle properties and complex crater formulation.

* information listed above is at the time of submission.

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