The Application of FBNWT in Wave Overtopping Analysis

J. Ocean Eng. Technol. 2008;22(1):1-5.

Liu Zhen,Jin Ji-Yuan,Hyun Beom-Soo

College of Engineering Ocean University of China,Division of Naval Architecture & Ocean Systems Engineering Korea Maritime University,Division of Naval Architecture & Ocean Systems Engineering Korea Maritime University

Keywords: FBNWT, Numerical wave tank, VOF model, Wave overtopping, Dynamic mesh method, NITA-PISO

Abstract

A 2-D Fluent-based numerical wave tank(FBNWT) capable of simulating wave propagating and overtopping is presented. The FBNWT model is based on the Reynolds averaged Naiver-Stokes equations and VOF free surface tracking method. The piston wave maker system is realized by dynamic mesh technology(DMT) and user defined function(UDF). The non-iteration time advancement(NITA) PISO algorithm is employed for the velocity and pressure coupling. The FBNWT numerical solutions of linear wave propagation have been validated by analytical solutions. Several overtopping problems are simulated and the prediction results show good agreements with the experimental data, which demonstrates that the present model can be utilized in the corresponding analysis.