A 3D non-hydrostatic model for wave interactions with structures using immersed boundary method

被引：20

作者：

Ai, Congfang ^{[1
]}

Ma, Yuxiang ^{[1
]}

Yuan, Changfu ^{[1
]}

Dong, Guohai ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

来源：

COMPUTERS & FLUIDS | 2019年 / 186卷

基金：

中国国家自然科学基金;

关键词：

Non-hydrostatic model; Immersed boundary method; Wave-structure interactions; Boundary-fitted coordinate; NUMERICAL-SIMULATION; OCEAN MODEL; WATER-WAVES; FLOW MODEL; EQUATIONS;

D O I：

10.1016/j.compfluid.2019.04.005

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Immersed boundary (IB) method is incorporated in a three-dimensional (3D) non-hydrostatic model for predicting wave-structure interactions. The model solves the Navier-Stokes equations by means of an explicit projection method. The 3D grid system is built based upon a horizontal Cartesian grid framework and a vertical general boundary-fitted coordinate system. The vertical grid system not only has the boundary-fitted properties of better fitting the bed and free surface, but also allows for a great adaptability of the vertical discretization. The numerical model is validated against the experimental data of wave interactions with various types of structures including submerged bottom-mounted structure, suspended structure, and surface-piercing bottom-mounted structure. Good agreement between the model results and experimental data are achieved, demonstrating the capability of the developed model on resolving wave-structure interactions. Thus, the proposed non-hydrostatic model with IB method can provide an alternative to studying wave interactions with complex structures. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：24 / 37

页数：14

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