NASA SBIR 2006 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER: 06-2 A2.02-9540
PHASE 1 CONTRACT NUMBER: NNC07QA15P
SUBTOPIC TITLE: Combustion for Aerospace Vehicles
PROPOSAL TITLE: A Renewed Approach for Large Eddy Simulation of Complex Geometries

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Flow Parametrics, LLC
68 Bushy Hill Road
Ivoryton, CT 06442 - 1108
(561) 625-8850

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Andreja Brankovic
brankov@flowparametrics.com
68 Bushy Hill Road
Ivoryton, CT 06442 - 1108
(561) 625-8850

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
The potential benefits of Large Eddy Simulation (LES) for aerodynamics and combustion simulation hvae largely been missed, due to the complexity of generating grids for complex topologies, and the requirement for boundary fitted grids which reduce the accuracy of the method. The Phase 2 Program builds on the Cartesian grid LES flow solver developed under Phase 1, and includes new techologies such as immersed boundary conditions, multigrid code acceleration, compressibility, and advanced subgrid scale models for turbulence and combustion. Experimental validation cases using NASA-sponsored experiments, and using actual aeroengine combustor hardware will be performed, comparing the LES flow solver results with experimental combustor exit temperatures, and with other code predictions, providing a unique opportunity for validation of the flow solver.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The aerospace and power generation industries have expressed strong interest in this approach to Large Eddy Simulation, and feel it may finally bring the benefits of the technique to practical fruition. Specific users for the Phase II LES solver include Pratt & Whitney, Siemens, Spiritech Advanced Products, UTRC, as indicated by letters of support. A diverse group of industries, including automotive, biomedical, and other propulsion groups all have key product design issues that can ba best addressed by the LES approach.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Commercial applications within NASA GRC include project and test support of combustion experiments, including testing of novel fuel injector and combustor concepts as performed with P&W and GE at NASA GRC facilities. The LES flow solver will also work as a numerical framework for NASA in its on-going evaluations of physiscs-bsaed models of turbulence and combustion. The Cartesian grid approach promoted here will potentially standardize the use of LES solvers within NASA and industry, due to the reduced need for highly accurate CAD-based geometry definition of engine hardware.

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
Aircraft Engines
Biochemical Conversion
Chemical
Combustion
Fundamental Propulsion Physics
Micro Thrusters
Simulation Modeling Environment
Testing Facilities
Thermodynamic Conversion


Form Generated on 08-02-07 14:39