Turbopump Cavitation Tools

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$749,900.00
Award Year:
2008
Program:
SBIR
Phase:
Phase II
Contract:
FA9300-08-C-2001
Award Id:
82161
Agency Tracking Number:
F071-204-0275
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
6210 Keller's Church Road, Pipersville, PA, 18947
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
AshvinHosangadi
Principal Scientist
(215) 766-1520
hosangad@craft-tech.com
Business Contact:
BrianYork
Principal Scientist & Tre
(215) 766-1520
york@craft-tech.com
Research Institute:
n/a
Abstract
Next generation liquid rocket systems envision novel designs for turbopumps that can operate at high suction speeds (i.e. low inlet pressures), and can be throttled over a wide range of low, off-design flow conditions. This is an extremely demanding flow regime where performance loss and damage from cavitation instabilities can be catastrophic since they can generate large amplitude pressure fluctuations. However, the ability of current analytical or CFD tools to reliably predict unsteady cavitation dynamics is not mature particularly for cryogens where temperature fluctuations can couple with the pressure variations. The innovation proposed here is to extend current computational capabilities to analyze mean solutions and head drop-off, to an unsteady framework that can predict amplitudes and frequencies of dynamic pressure loads within a cryogenic fluid environment with temperature fluctuations. A key aspect of this proposal is an extensive test program that will be conducted in the Phase II effort to provide dynamic load magnitudes in a regime where thermal effects are important. Hence, the resulting product will be a well-validated and reliable analysis tool, CRUNCH CFDr, that can be used to predict unsteady, off-design performance of liquid rocket turbopumps.

* information listed above is at the time of submission.

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