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Fabrication Materials for a Closed Cycle Brayton Turbine WheelA multidisciplinary analysis of a radial inflow turbine rotor is presented. This work couples high-fidelity fluid, structural, and thermal simulations in a seamless multidisciplinary analysis to investigate the consequences of material selection. This analysis extends multidisciplinary techniques previously demonstrated on rocket turbopumps and hypersonic engines. Since no design information is available for the anticipated Brayton rotating machinery, an existing rotor design (the Brayton Rotating Unit (BRU)) was used in the analysis. Steady state analysis results of a notional turbine rotor indicate that stress levels are easily manageable at the turbine inlet temperature, and stress levels anticipated using either superalloys or ceramics.
Document ID
Document Type
Technical Memorandum (TM)
Khandelwal, Suresh
(RS Information Systems, Inc. Cleveland, OH, United States)
Hah, Chunill
(NASA Glenn Research Center Cleveland, OH, United States)
Powers, Lynn M.
(Case Western Reserve Univ. Cleveland, OH, United States)
Stewart, Mark E.
(QSS Group, Inc. Cleveland, OH, United States)
Suresh, Ambady
(QSS Group, Inc. Cleveland, OH, United States)
Owen, Albert K.
(Army Research Lab. Cleveland, OH, United States)
Date Acquired
August 23, 2013
Publication Date
March 1, 2006
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
Meeting Information
Third International Energy Conversion Engineering Conference (IECEC)(San Francisco, CA)
Funding Number(s)
WBS: WBS 22-973-80-10
Distribution Limits
Public Use Permitted.
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