Evaluation of the Propeller Hull Vortex using a RANS solver

Jussi Martio, Tuomas Sipilä, Antonio Sanchez Caja, Ilkka Saisto, Timo Siikonen

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

    Abstract

    The appearance of the propeller hull vortex (PHV) has been investigated using the FINFLO RANS solver. This specific phenomenon occurs when solid surfaces placed in the neighbourhood of the propeller prevent the natural flow contraction resulting from the local flow acceleration. As the propeller blades near the solid surfaces may not obtain enough mass flow from the inlet - i.e., the propeller is starved of water - the flow may reverse locally so that water is sucked from the outlet. The small tip clearance combined with the low advance number as well as the geometry of the solid surfaces may affect the inception of the PHV. Time-dependent computations were carried out at seven advance numbers. During the analysis of the results, several quantities were examined to detect the inception of the PHV. Streamlines were found to be the best technique to trace the vortices from an extremely complex flow field. The flow patterns on the flat plate were compared to published experimental observations using the limiting streamlines along the plate. Flow patterns similar to those discovered in the experiments were also obtained by RANS simulations, so the RANS method is able to predict the occurrence of the PHV at least on a qualitative level
    Original languageEnglish
    Title of host publicationProceedings of the Second International Symposium on Marine Propulsors - smp’11 15 – 17 June 2011, Hamburg, Germany
    Place of PublicationHamburg
    Pages278-283
    Publication statusPublished - 2011
    MoE publication typeA4 Article in a conference publication
    Event2nd International Symposium on Marine Propulsors, SMP'11 - Hamburg, Germany
    Duration: 15 Jun 201117 Jun 2011

    Conference

    Conference2nd International Symposium on Marine Propulsors, SMP'11
    Abbreviated titleSMP 2011
    CountryGermany
    CityHamburg
    Period15/06/1117/06/11

    Keywords

    • URANS
    • propeller hull vortex

    Fingerprint Dive into the research topics of 'Evaluation of the Propeller Hull Vortex using a RANS solver'. Together they form a unique fingerprint.

  • Cite this

    Martio, J., Sipilä, T., Sanchez Caja, A., Saisto, I., & Siikonen, T. (2011). Evaluation of the Propeller Hull Vortex using a RANS solver. In Proceedings of the Second International Symposium on Marine Propulsors - smp’11 15 – 17 June 2011, Hamburg, Germany (pp. 278-283). http://www.marinepropulsors.com/smp/files/downloads/smp11/Paper/TB1-3_Martio.pdf