Hydrodynamic performances of a wall type breakwater - a physical and numerical approach

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-12-31 DOI:10.3329/jname.v18i2.52134

K. Viswanathan, Manu, Subba Rao

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引用次数: 2

Abstract

In this paper, hydrodynamic characteristics of caisson type breakwater are investigated through physical model approach and a numerical model based on the Volume of Fluid (VOF) is validated. The investigations are carried out for varying wave characteristics and depth of water 0.50 m. In an experimental study, to understand the model and scale effects for the desired wave conditions is a critical task in all-time conditions. So, it is also necessary to develop an appropriate numerical model to understand the hydrodynamics of the selected test model. Using the Volume of Fluid (VOF) method and incompressible open channel fluid flow a 2D numerical wave flume is developed using ANSYS- Fluent platform. The wave boundary conditions are adopted by solving the Reynolds-Averaged Navier Stokes equations (RANS equation) and especially with k—ε model to examine the effects of turbulence on the numerical results. The wave forces, wave runup, and wave reflection characteristics on the test model are measured for different wave characteristics, and results obtained from the numerical investigations are comparable with the experimental results to evident the relevance of the developed numerical model.

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壁式防波堤的水动力性能——一种物理和数值方法

本文采用物理模型方法研究了沉箱式防波堤的水动力特性，并对基于流体体积的数值模型进行了验证。研究是针对不同的波浪特征和0.50 m的水深进行的。在一项实验研究中，了解所需波浪条件下的模型和尺度效应是历史条件下的一项关键任务。因此，也有必要开发一个合适的数值模型来了解所选试验模型的流体动力学。利用流体体积法和不可压缩明渠流体流动，利用ANSYS-Fluent平台建立了二维数值波浪水槽。采用雷诺平均Navier-Stokes方程（RANS方程）的波浪边界条件，特别是采用k-ε模型，研究湍流对数值结果的影响。针对不同的波浪特性，测量了试验模型上的波浪力、波浪上升和波浪反射特性，数值研究结果与实验结果相比较，证明了所开发的数值模型的相关性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.