NASA STTR 2006 Solicitation
FORM B - PROPOSAL SUMMARY
PROPOSAL NUMBER: |
06-2 T6.02-9950 |
PHASE 1 CONTRACT NUMBER: |
NNK07MA36C |
RESEARCH SUBTOPIC TITLE: |
Predictive Numerical Simulation of Rocket Exhaust Interactions
with Lunar Soil |
PROPOSAL TITLE: |
Numerical Simulation of Rocket Exhaust Interaction with Lunar
Soil |
SMALL BUSINESS CONCERN (SBC): |
RESEARCH INSTITUTION (RI):
|
NAME: |
CFD Research Corporation |
NAME: |
University of Florida |
STREET: |
215 Wynn Drive, 5th Floor |
STREET: |
P.O. Box 116550 (339 Weil Hall) |
CITY: |
Huntsville |
CITY: |
Gainesville |
STATE/ZIP: |
AL 35805 - 1944 |
STATE/ZIP: |
FL 32611 - 6550 |
PHONE: |
(256) 726-4858 |
PHONE: |
(352) 392-9448 |
PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name,
E-mail, Mail Address, City/State/Zip, Phone) Peter
Liever pal@cfdrc.com 215 Wynn Dr. Huntsville, AL 35805 -
1944 (256) 726-4858
Expected Technology Readiness Level (TRL) upon completion of
contract:
TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200
words) Rocket plume impingement can cause significant damage and
contaminate co-landing spacecraft and surrounding habitat structures
during lunar landing operations. CFDRC and the University of Florida will
develop an innovative simulation system for predicting surface erosion and
debris transport caused by lunar surface rocket plume impingement. This
simulation system combines 1) a unified continuum-rarefied flow solver
capable of simulating plume impingement flow in lunar vacuum, 2) granular
solid-fluid interaction simulation models for developing databases for
lunar soil erosion and debris particle release mechanism, and 3) particle
tracking tools to simulate debris kinetics and dispersion after
liberation. During Phase I, the Unified Flow Solver (UFS) capabilities in
simulating hybrid rarefied-continuum plume flow, and the debris dispersion
tracking capabilities were demonstrated. The fluid-solid simulation tools
realistically simulated jet induced soil grain response characteristics,
clearing the path towards establishing working models of erosion and
particle release mechanisms. In Phase II, the individual modules will be
refined, validated and integrated into a coherent simulation system. The
solid-fluid interaction physics will be refined for the peculiar lunar
soil layer characteristics and consequently soil erosion models will be
derived. The erosion models will serve to prescribe debris initial
conditions for a debris-tracking module developed and integrated with the
flow solver. The simulation capability will be essential for predicting
the severity and range of dust and debris transport and for designing
lunar settlement layout, dust and debris impact mitigation measures.
POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters,
approximately 150 words) The debris simulation tool will be of first
order importance to the Space Exploration program for lunar robotic and
human mission architecture definition. The tool will be equally applicable
to follow-on Mars robotic and human missions. The developed technology
will also be applicable for analysis of solid propulsion systems with
embedded solid particle.
POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500
characters, approximately 150 words) Many potential non-NASA
commercial applications exist in civil and military industries. Dust, sand
and snow stir-up during helicopter landing and take-off in a desert or
artic environment result in severe visibility impairment (brown-out),
windshield abrasion and danger of debris ingestion. Civil engineering and
environmental engineering applications include wind-borne landscape
erosion and dust transport to populated areas.
NASA's technology taxonomy has been developed by the SBIR-STTR program
to disseminate awareness of proposed and awarded R/R&D in the agency.
It is a listing of over 100 technologies, sorted into broad categories, of
interest to NASA.
TECHNOLOGY TAXONOMY MAPPING |
Fundamental Propulsion Physics Simulation
Modeling Environment Software Tools for Distributed Analysis and
Simulation Testing Requirements and
Architectures
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