Numerical Study of Breakwater Steepness Effect on the Hydrodynamics of Standing Waves and Steady Streaming

作者：Hajivalie F^*; Yeganeh Bakhtiary A

来源：Journal of Coastal Research, 2009, 514-518.

• k-epsilon
• RANS
• Recirculating cells
• Sloped breakwater
• Vertical breakwater
• VOF

A 2D numerical model based on Reynolds Averaged Navier-Stokes (RANS) equations has been developed to Study the effect of breakwater steepness on standing waves and steady streaming. Turbulence effect was described by using a k-epsilon turbulence Closure model and free surface configuration was tracked by Volume of Fluid (VOF) technique. The results of numerical model have been compared with experimental results of Xie (1981) for standing waves in front of a vertical breakwater. Three individual simulations were set LIP for three different breakwaters, a vertical wall, 1:2 and 2:1 sloped breakwater. From the model results it is concluded that the milder slope cause a secondary steady streaming recirculating cell over the toe of breakwater which could be in charge of scouring near the toe of sloped breakwater.

• 出版日期2009