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Computation of Unsteady 3D Flow and Torque Transmission in Hydrodynamic Couplings FREE

[+] Author Affiliations
A. Kost, N. K. Mitra, M. Fiebig

Ruhr-Universität Bochum, Bochum, Germany

Paper No. 94-GT-070, pp. V001T01A027; 7 pages
doi:10.1115/94-GT-070
From:
  • ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • The Hague, Netherlands, June 13–16, 1994
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7883-5
  • Copyright © 1994 by ASME

abstract

For the optimized design of hydrodynamic or fluid couplings an adequate understanding of the flow field in such devices is necessary. In a hydrodynamic coupling, torque is transmitted by fluid circulation due to a speed differential between the rotating pump impeller and a matching turbine runner. Detailed studies of the unsteady 3D flow and torque transmission in fluid couplings are reported here. A finite-volume method with non-staggered variable arrangement is used to solve the unsteady Navier-Stokes equations on boundary-fitted grids and for a rotating frame of reference. The results give further insights into the physical process of torque transmission and allow important conclusions for the design of hydrodynamic couplings.

Copyright © 1994 by ASME
This article is only available in the PDF format.

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