An Eulerian/Lagrangian computational procedure was developed for the prediction of cavitation inception by event rate. The carrier-phase flow field was computed using an Eulerian Reynolds-averaged Navier-Stokes (RANS) solver. The Lagrangian analysis was one-way coupled to the RANS solution, since at inception, the contributions of mass, momentum, and energy of the microbubbles to the carrier flow are negligible. The trajectories were computed using Newton’s second law with models for various forces acting on the bubble. The growth was modeled using the Rayleigh-Plesset equation. The important effect of turbulence was included by adding a random velocity component to the mean flow velocity and by reducing the local static pressure. Simulation results for the Schiebe body indicate agreement with experimentally observed trends and a significant event rate at cavitation indices above visual inception.
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January 2003
Technical Papers
Eulerian/Lagrangian Analysis for the Prediction of Cavitation Inception
Kevin J. Farrell, Associate Research Engineer,
Kevin J. Farrell, Associate Research Engineer,
Applied Research Laboratory, The Pennsylvania State University, P.O. Box 30, State College, PA 16804
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Kevin J. Farrell, Associate Research Engineer,
Applied Research Laboratory, The Pennsylvania State University, P.O. Box 30, State College, PA 16804
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division, Jan. 22, 2001; revised manuscript received June 28, 2002. Associate Editor: J. Katz.
J. Fluids Eng. Jan 2003, 125(1): 46-52 (7 pages)
Published Online: January 22, 2003
Article history
Received:
January 22, 2001
Revised:
June 28, 2002
Online:
January 22, 2003
Citation
Farrell, K. J. (January 22, 2003). "Eulerian/Lagrangian Analysis for the Prediction of Cavitation Inception ." ASME. J. Fluids Eng. January 2003; 125(1): 46–52. https://doi.org/10.1115/1.1522411
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