کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1726660 1520757 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical simulation of nonlinear dispersive waves propagating over a submerged bar by IB-VOF model
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
Numerical simulation of nonlinear dispersive waves propagating over a submerged bar by IB-VOF model
چکیده انگلیسی
It is a good test for a numerical model to simulate progressive waves propagating over a submerged bar with a relatively high ratio of slopes. In this paper, the combined IB-VOF model is used to predict nonlinear dispersive waves propagating over a submerged bar with both slopes of 1:2. The predicted free surface elevations are compared with the experimental data and numerical results presented by other researchers. The comparison shows that the IB-VOF model is able to provide satisfactory wave profiles in the shallow water with strong nonlinear effects and in the wave transmitted region with strong wave dispersion in particular. Moreover, the wave evolution behind the submerged bar is described in detail, including the spatial wave profile modulation, spectral analysis of the time-series waves, flow velocity and pressure fields, and kinetic energy distribution. The effect of fluid viscosity on the numerical simulations is also studied, and it is found that the effect on the wave evolution considered in this paper is not significant. Finally, the hydrodynamic force acting on the bar is calculated using the IB-VOF model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 38, Issues 2–3, February 2011, Pages 319-328
نویسندگان
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