DES of the turbulent flow around a circular cylinder of finite height

IF 1.2 Q3 ENGINEERING, MARINE

Journal of Naval Architecture and Marine Engineering Pub Date : 2016-12-29 DOI:10.3329/JNAME.V13I2.29994

A. Elbatran

引用次数: 6

Abstract

The current research work investigates numerically the turbulent flow field characteristics around three dimensional circular cylinder of finite height at Reynolds number of 43000 using Detached Eddy Simulation (DES) turbulence model. Comparison of the numerical results with the experiment data has been taken place. The results reveals that the DES turbulence model is superior for predicting the flow past the circular cylinder of finite height at this Re. The numerical results of this study show the great potential of the presented DES for investigating the complicated flow structure in this case. DES is very accurate for predicting the flow characteristics in many sophisticated cases and can reduce the computational efforts during the simulation process in comparison with Large Eddy Simulation (LES) turbulence mathematical model.

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有限高圆柱周围湍流的微分方程

本文采用分离涡模拟(DES)湍流模型，对雷诺数为43000的有限高度三维圆柱周围的湍流流场特性进行了数值研究。并将数值计算结果与实验数据进行了比较。结果表明，DES湍流模型能较好地预测有限高度圆柱体在这一雷诺数下的流动。数值结果表明，本文提出的DES湍流模型在研究这种情况下的复杂流动结构方面具有很大的潜力。与大涡模拟(LES)湍流数学模型相比，DES对许多复杂情况下的流动特性预测非常准确，并且可以减少模拟过程中的计算量。

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

Journal of Naval Architecture and Marine Engineering ENGINEERING, MARINE-

CiteScore

2.50

自引率

5.60%

发文量

审稿时长

20 weeks

期刊介绍： TJPRC: Journal of Naval Architecture and Marine Engineering (JNAME) is a peer reviewed journal and it provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; under-water acoustics; satellite observations; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; aqua-cultural engineering; sub-sea engineering; and specialized water-craft engineering. International Journal of Naval Architecture and Ocean Engineering is published quarterly by the Society of Naval Architects of Korea. In addition to original, full-length, refereed papers, review articles by leading authorities and articulated technical discussions of highly technical interest are also published.