Large Eddy Simulation of crashback in marine propellers

Martin Vyšohlíd, Krishnan Mahesh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

The large eddy simulation methodology is applied to predict the flow around a marine propeller in the forward and crashback modes of operation. A non-dissipative, robust numerical algorithm developed by Mahesh et al. (2004, J. Comput. Phys., 197: 215-240) for unstructured grids was extended to include the effect of rotating frame of reference. The thrust and torque coefficients, circumferentially averaged mean velocity and root mean square fluctuation of velocity obtained from the simulation are compared to experimental data and good agreement is observed. The crashback simulations show the presence of a highly unsteady ring-vortex, and irregular low frequency unsteady loads on the propeller.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages17042-17053
Number of pages12
ISBN (Print)1563478072, 9781563478079
DOIs
StatePublished - 2006
Event44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
Duration: Jan 9 2006Jan 12 2006

Publication series

NameCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Volume22

Other

Other44th AIAA Aerospace Sciences Meeting 2006
Country/TerritoryUnited States
CityReno, NV
Period1/9/061/12/06

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