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SSME Investment in Turbomachinery Inducer Impeller Design Tools and MethodologyWithin the rocket engine industry, SSME turbomachines are the de facto standards of success with regard to meeting aggressive performance requirements under challenging operational environments. Over the Shuttle era, SSME has invested heavily in our national inducer impeller design infrastructure. While both low and high pressure turbopump failures/anomaly resolution efforts spurred some of these investments, the SSME program was a major benefactor of key areas of turbomachinery inducer-impeller research outside of flight manifest pressures. Over the past several decades, key turbopump internal environments have been interrogated via highly instrumented hot-fire and cold-flow testing. Likewise, SSME has sponsored the advancement of time accurate and cavitating inducer impeller computation fluid dynamics (CFD) tools. These investments together have led to a better understanding of the complex internal flow fields within aggressive high performing inducers and impellers. New design tools and methodologies have evolved which intend to provide confident blade designs which strike an appropriate balance between performance and self induced load management.
Document ID
20100022137
Document Type
Conference Paper
Authors
Zoladz, Thomas (NASA Marshall Space Flight Center Huntsville, AL, United States)
Mitchell, William (Pratt and Whitney Aircraft Group United States)
Lunde, Kevin (Pratt and Whitney Aircraft Group United States)
Date Acquired
August 24, 2013
Publication Date
May 3, 2010
Subject Category
Spacecraft Propulsion and Power
Report/Patent Number
M10-0304
Meeting Information
57th JANNAF Joint Propulsion Meeting(Colorado Springs, CO)
Distribution Limits
Public
Copyright
Other