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

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CB67C
Agency Tracking Number: 080048
Amount: $599,971.00
Phase: Phase II
Program: STTR
Awards Year: 2010
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
 Shuchi Yang
 Principal Investigator
 (480) 945-9988
 shuchi@zonatech.com
Business Contact
 Jennifer Scherr
Title: Business Official
Phone: (480) 480-9988
Email: jennifer@zonatech.com
Research Institution
 Regents of New Mexico State University
 Alisha Giron
 MSC PSL, P.O. Box 30002
Las Cruces, NM, 88003
 (575) 646-4502
 Domestic nonprofit research organization
Abstract
An efficient and accurate software package named ZMGP (ZONA Multi-scale Gaskinetic/Particle simulation package) is proposed as a 3D tool to predict the lunar dust trajectory and crater formation process when a retro-rocket lands on the lunar surface. ZMGP has many special features including: 1, the hybrid flow module by coupling the gaskinetic Bhatnagar-Gross-Krook (BGK) model and the direct simulation Monte Carlo (DSMC) method (BGK/DSMC) to efficiently compute the rarefied flowfield; 2. by dividing the crater into different small slices, the Discrete Element Method (DEM) provides an accurate external Mass Erosion Rate (MER) database; 3. one Reduced Order Modeling (ROM) is built up from the vast DEM runs with the Neural Network (NNW) method, and then coupled with the BGK/DSMC module to predict the MER from the lunar surface; 4. integrating the lunar crater MER results provides the initial velocities for the dust particles off the lunar crater; 5. ZMGP utilizes an Overlay module or a two-species BGK module alternatively to produce the trajectories and shootout velocity of ejected particles. With finished concept verification for 2D case in Phase I, we plan to fully develop the software for 3D case and validate it with available experiment data in Phase II.

* information listed above is at the time of submission.

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