• a comparison between standing wave pattern in front of vetical breakwater with horizontal and sloped-bed

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1387/01/01
    • تاریخ انتشار در تی پی بین: 1387/01/01
    • تعداد بازدید: 899
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a two-dimensional numerical model is developed to study the formation of standing waves in front of a vertical breakwater positioned on both flat and sloped-bed. the main components of the model are the reynolds averaged navier-stokes (rans) equations, which define the average motion of a turbulent flow, a k-ε turbulence closure model and a volume of fluid (vof) technique for tracking the free surface motion. by imposing the generating-absorbing boundary condition at the inlet boundaries, waves can be generated while the reflected waves can be absorbed. first, we compared the model results with the experimental results of shaosong et al. (2001) for model validation. the results indicated that the steady streaming feature is more regular in case of flat bed while in case of the sloped-bed the distance of recirculating cells varies with the water depth. it is also evident that the turbulence intensity is higher in case of slopedbed compare to flat bed one.

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