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Efficient and Accurate Computational Framework for Injector Design and Analysis

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2006 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Combustion Research and Flow Technology,
6210 Kellers Church Road Pipersville, PA 18947-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2006
Title: Efficient and Accurate Computational Framework for Injector Design and Analysis
Agency: NASA
Contract: NNM06AA58C
Award Amount: $69,995.00


CFD codes used to simulate upper stage expander cycle engines are not adequately mature to support design efforts. Rapid and accurate simulations require more versatile grid frameworks to handle complex geometries of multi-element injector configurations. Turbulence models require upgrades to better predict fuel/air mixing with swirl and to predict heat flux. The innovation proposed initiates work towards developing a mature, high-fidelity simulation tool. Geometry complexity and numerical accuracy problems are addressed via a multi-element UNS grid adaptation strategy that builds upon techniques developed for valving problems and scramjet injectors. Turbulent mixing and heat transfer are upgraded by including PDE's that solve for temperature and species variance (yielding local values of Prandtl and Schmidt number), as well as swirl corrections. Finally generalized preconditioning that accounts for stiffness resulting from a large range of Mach numbers, and generalized thermodynamic formulations for real fluids will be matured to yield robust numerics with improved solution convergence. The tools and technology to be developed here would directly impact design efforts for future long duration lunar and Mars missions that require more durable long-life, light weight system components, and address methodology to operate with novel hydrocarbon fuels that may be harvested in-situ.

Principal Investigator:

Ashvin Hosangadi
Principal Investigator

Business Contact:

Paula Schachter
Business Official
Small Business Information at Submission:

Combustion Research and Flow Technology
6210 Keller's Church Road Pipersville, PA 18947

EIN/Tax ID: 232759059
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No