• a pressure-based algorithm for cavitating flow computations

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 436
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a pressure-based algorithm for the prediction of cavitating flows is presented. the algorithm employs a set of equations including the navier-stokes equations and a cavitation model explaining the phase change between liquid and vapor. a pressure-based method is used to construct the algorithm and the coupling between pressure and velocity is considered. the pressure correction equation is derived from a new continuity equation which employs a source term related to phase change rate instead of the material derivative of density dρ/dt. this pressure-based algorithm allows for the computation of steady or unsteady, 2-d or 3-d cavitating flows. two 2-d cases, flows around a flat-nose cylinder and around a naca0015 hydrofoil, are simulated respectively, and the periodic cavitation behaviors associated with the re-entrant jets are captured. this algorithm shows good capability of computating time-dependent cavitating flows.

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