NASA SBIR 2010 Solicitation


PROPOSAL NUMBER: 10-1 A2.05-9062
SUBTOPIC TITLE: Aerodynamics
PROPOSAL TITLE: A Unified Gaskinetic Methodology for Full-Knudsen-Range flows with Chemically Reacting Effects

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
ZONA Technology, Inc.
9489 E. Ironwood Square Drive
Scottsdale, AZ 85258 - 4578
(480) 945-9988

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Shuchi Yang
9489 E. Ironwood Square Drive
Scottsdale, AZ 85258 - 4578
(480) 945-9988

Estimated Technology Readiness Level (TRL) at beginning and end of contract:
Begin: 3
End: 6

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
ZONA proposes a Unified Gas Kinetic Scheme (UGKS) to cover the full Knudsen number range from the continuum flow to free molecular flow that can simultaneously exist in the jet nozzle flow of the spacecraft. In the UGKS solver, the BGK model of Boltzmann equation is solved directly with finite volume method based on the Discrete Ordinate Method (DOM). In the UGKS computation the convective terms and collision term is computed in one step with a multi-scale scheme without splitting. The UGKS also closely couples the update of macroscopic conservative variables with the update of microscopic gas distribution functions in one step. At the continuum flow regime, the UGKS recovers the Navier-Stokes solutions with much larger time step than regular direct BGK solver where UGKS essentially becomes a shock-capture scheme. In the rarefied flow regime, UGKS recovers the direct BGK method up to the free molecular flow. With the UGKS, the jet-like flow can be simulated with a unique flow solver. Furthermore, a two-species chemical reaction will be incorporated in UGKS. The UGKS will be applied to various test cases whose results will be validated with others' computational results and available experimental data to verify its accuracy and computational efficiency.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The developed Unified GasKinetic (UGKS) solver can be used for hypersonic applications from continuum to rarefied flow regimes for thermochemical nonequilibrium effects up to ionization/plasma flows and including chemical reaction. The UGKS solver can generate accurate aerodynamic forces and heat rates. Typical applications are for launch vehicles in space access, entry command module and ballutes in atmospheric entry; plume flows in chemical engines or rockets. 

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Potential Non-NASA commercial applications are supported by aerospace and non-aerospace domains and provide industry for rarefied gas flows application with a wide range of Kn number and Mach number. Such examples for defense industry include hypersonic flows around missiles and rocket nozzles. For civil industry, UGKS applications include aerosol effects on weather prediction, materials processing inside vacuum chamber especially for the semi-conductor industry, air purification with tools made of fine fibers such as masks, and rarefied gas flows associated with MicroElectroMechanical System (MEMS) such as various gas sensors. ZONA will extend the proposed UGKS and package them into a commercial software. Potential customers include DoD, Depart. of Homeland Security, chemical and civil engineering firms, vacuum industry, and semiconductor industry, etc.

TECHNOLOGY TAXONOMY MAPPING (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.)
Software Tools (Analysis, Design)
Tools/EVA Tools

Form Generated on 09-03-10 12:12