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Algorthms and Regolith Erosion Models for the Alert Code

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2009 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2009
Title: Algorthms and Regolith Erosion Models for the Alert Code
Agency: NASA
Contract: NNX09CF72P
Award Amount: $100,000.00


ORBITEC and Duke University have teamed on this STTR to develop the ALERT (Advanced Lunar Exhaust-Regolith Transport) code which will include new developments in modeling of regolith erosion and entrainment as well as plume transport with full mass and momentum conservation. The Plume is handled in a Vlasov formalism with drag force on dust grains, dust equations of motion are solved over a size spectrum. Because of its significant gravity and lack of atmosphere landing on the Moon's surface must involve impingement of the rocket plume directly on the Lunar regolith. The experience in the Apollo landings, both from the perspective of the astronauts viewing surface conditions during decent, and the effects on the exposed surfaces of the Surveyor 3 from the nearby landing of Apollo 12 have alerted us to the importance of good modeling of rocket exhaust plume regolith interactions.

Principal Investigator:

John E. Brandenburg
Principal Investigator

Business Contact:

Eric E. Rice
President and CEO
Small Business Information at Submission:

Orbital Technologies Corporation
Space Center, 1212 Fourier Drive Madison, WI 53717

EIN/Tax ID: 391628664
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Duke University
2200 W. Main Street, Suite 710
Durham, NC 27705-1107
Contact Phone: (919) 684-3030
RI Type: Nonprofit college or university