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Physics-Based Pneumatic Hammer Instability Model

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
Florida Turbine Technologies, Inc.
1701 Military Trail Suite 110 Jupiter, FL 33458-7887
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2006
Title: Physics-Based Pneumatic Hammer Instability Model
Agency: NASA
Contract: NNM06AA61C
Award Amount: $69,974.00


Florida Turbine Technologies (FTT) proposes to conduct research necessary to develop a physics-based pneumatic hammer instability model for hydrostatic bearings operating in a compressible fluid. The innovation of the resulting model is to account for the extreme density, compressibility, and non-uniform pressure variations found in highly turbulent rocket engine liquid hydrogen turbopump hydrostatic bearings as well as the variations resulting from 3-D effects such as tangential and/or axial injection, which are ignored in the pneumatic hammer instability criteria currently used throughout industry. The ability to accurately predict the stability of highly turbulent, highly compressible liquid hydrogen hydrostatic bearings incorporating 3-D effects is essential for NASA to achieve IHPRPT objectives through the use of smaller, faster turbopumps. This project will enable the accurate prediction of bearing stability, resulting in higher performing bearings that enable smaller operating clearances for improved turbopump and system-level performance.

Principal Investigator:

Philip Pelfrey
Principal Investigator

Business Contact:

James L. Brostmeyer
Operations Chief
Small Business Information at Submission:

Florida Turbine Technologies, Inc.
140 Intracoastal Pointe, Suite 301 Jupiter, FL 33477

EIN/Tax ID: 650869709
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No