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Developments in Impeller/Seal Secondary Flow Path Modeling for Dynamic Force Coefficients and LeakageThis paper highlights bulk flow and CFD-based models prepared to calculate force and leakage properties for seals and shrouded impeller leakage paths. The bulk flow approach uses a Hir's based friction model and the CFD approach solves the Navier Stoke's (NS) equation with a finite whirl orbit or via analytical perturbation. The results show good agreement in most instances with available benchmarks.
Document ID
19970024782
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Palazzolo, Alan
(Texas A&M Univ. College Station, TX United States)
Bhattacharya, Avijit
(Texas A&M Univ. College Station, TX United States)
Athavale, Mahesh
(Computational Fluid Dynamics Research Corp. Huntsville, AL United States)
Venkataraman, Balaji
(Atlas Copco Cometec, Inc. Vorheesville, NY United States)
Ryan, Steve
(NASA Marshall Space Flight Center Huntsville, AL United States)
Funston, Kerry
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 17, 2013
Publication Date
May 1, 1997
Publication Information
Publication: Rotordynamic Instability Problems in High-Performance Turbomachinery 1996
Subject Category
Mechanical Engineering
Accession Number
97N24539
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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