Hydrodynamic Behavior of Fluid Resonance Between Twin Boxes in Moonpool with Various Edge Profiles Under Wave Actions  

作　　者：LAN Jun-jie JIANG Sheng-chao GAO Jun-liang 

机构地区：[1]Faculty of Vehicle Engineering and Mechanics,Dalian University of Technology,Dalian 116024,China [2]School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,China

出　　处：《China Ocean Engineering》2023年第4期547-557,共11页中国海洋工程（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.52171250,52371277,and 51909027).

摘　　要：Fluid resonance in moonpool formed by twin boxes under wave actions is investigated by using a viscous numerical wave flume with ReNormalization Group(RNG)turbulent model.The accuracy of the numerical model is validated by available experimental data.Three types of edge profiles,the sharp edge,concave edge and convex edge are con-sidered.Numerical simulations show that the normalized resonant amplitude in moonpool decreases with the decrease of moonpool opening or increase of incident wave amplitude.The increased reflection coefficients are the major reason for the phenomena,implying less wave energy is able to support the wave resonance in moonpool.With the increase of incident wave height,the energy coefficients increase for convex edges around resonant fre-quency,which are oppositely with those of sharp and concave edges.Various flow patterns of the wave resonance in the vicinity of the moonpool entrance are also identified,which are mainly dependent on the edge profiles.

关 键 词：moonpool wave resonance corner shape RNG turbulent model OpenFOAM® flow pattern 

分 类 号：U674.381[交通运输工程—船舶及航道工程] P75[交通运输工程—船舶与海洋工程]