Three-Dimensional Finite Difference Method for Rotordynamic Fluid Forces on Seals

Three-Dimensional Finite Difference Method for Rotordynamic Fluid Forces on Seals

A time-accurate Navier-Stokes method for calculating rotordynamic fluid reaction force coefficients in the incompressible flow regime, in 3D, is presented. The method incorporates the Helmholtz pressure method for unsteady incompressible flow. Attention is given to the case of a long seal and a shro...

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Veröffentlicht in:AIAA journal 1997-08, Vol.35 (8), p.1417-1420
Hauptverfasser: Williams, Morgan, Chen, Wei, Brozowski, Laura, Eastland, Anthony
Format: Artikel
Sprache:eng
Schlagworte:
Aerodynamics
Aircraft
Applied fluid mechanics
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Hydraulic and pneumatic machinery
Mathematical models
Physics
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Zusammenfassung:A time-accurate Navier-Stokes method for calculating rotordynamic fluid reaction force coefficients in the incompressible flow regime, in 3D, is presented. The method incorporates the Helmholtz pressure method for unsteady incompressible flow. Attention is given to the case of a long seal and a shrouded impeller; potential applications are seen in the treatment of labyrinth seals and tapered seals. (AIAA)
ISSN:0001-1452
1533-385X
DOI:10.2514/2.254