کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1726518 | 1520759 | 2010 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Implementation of PISO algorithm for simulating unsteady cavitating flows
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The present study focuses on the implementation of PISO algorithm to simulate cavitating flows. For simulation of unsteady behaviors of cavitation which have practical applications, the development of unsteady PISO algorithm based on the non-conservative approach is investigated. The effects of mixture compressibility are considered to improve accuracy of simulations. For multi-phase simulation, single-fluid Navier-Stokes equations, along with the volume fraction transport equation, are employed. The bubble dynamics model is utilized to simulate phase change. To prove capabilities of the developed PISO algorithm to simulate cavitating flows, unsteady simulation of cavitation around NACA0015 hydrofoil, a two dimensional flat plat, and a three dimensional circular disk are performed. The frequency of flow, pressure distributions, cavitating vortex shedding, and cavity characteristics are analyzed to discern results accuracy. To investigate accuracy of results, comparisons with available published experimental data are made and good agreement is achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 37, Issues 14â15, October 2010, Pages 1321-1336
Journal: Ocean Engineering - Volume 37, Issues 14â15, October 2010, Pages 1321-1336
نویسندگان
M.S. Seif, A. Asnaghi, E. Jahanbakhsh,