RANS predictions of a cavitating tip vortex

Tuomas Sipilä, Timo Siikonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


    VTT Technical Research Centre of Finland and Aalto University have been investigating the numerical simulation of cavitating propellers. Special emphasis is placed on having a reasonable grid resolution in the tip vortex and at the blade wake locations in the slipstream. The calculations are performed with a uniform inflow. The propeller analyzed in this paper is the model size PPTC propeller of SVA Potsdam. The effect of the experimental coefficients in Merkle's mass transfer model on the cavitating tip vortex is studied systematically. The paper contains calculations with different grid resolutions to show that a reasonable grid convergence of the results is reached. The calculations are conducted with FINFLO, a general-purpose CFD code. The numerical results are compared with model test results. The model test results contained the Laser Doppler Velocimetry (LDV) measurements of the propeller wake field in wetted conditions and the cavitation observations. The numerical results and the experiments show a reasonable correlation with each others
    Original languageEnglish
    Title of host publicationProceedings of CAV2012
    Place of PublicationSingapore
    PublisherResearch Publishing Services
    ISBN (Print)978-9-8107-2826-7
    Publication statusPublished - 2012
    MoE publication typeNot Eligible
    Event8th International Symposium on Cavitation, CAV 2012 - Singapore, Singapore
    Duration: 13 Aug 201216 Aug 2012


    Conference8th International Symposium on Cavitation, CAV 2012
    Abbreviated titleCAV 2012


    • Cavitation
    • tip vortex
    • RANS
    • simulation


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