Numerical Investigate the Effect of Turbulence Models on the CFD Computation of Submarine Resistance

Q2 Mathematics CFD Letters Pub Date : 2024-06-02 DOI:10.37934/cfdl.16.10.126139
Hien Le Tat, Nguyen Duy Anh, Nguyen Thi Ngoc Hoa
{"title":"Numerical Investigate the Effect of Turbulence Models on the CFD Computation of Submarine Resistance","authors":"Hien Le Tat, Nguyen Duy Anh, Nguyen Thi Ngoc Hoa","doi":"10.37934/cfdl.16.10.126139","DOIUrl":null,"url":null,"abstract":"Up to now, there is no developed ‘universal’ turbulence model in CFD simulation, so employing an appropriate turbulence model is crucial for accurately predicting the hydrodynamics of a ship, especially for submarines. This study focuses on investigating the impact of turbulence models on the predicted results in frictional and pressure resistance components and flow features around the submarine at different ship velocities by the CFD method. Four various turbulence models consisting of the Reynolds Stress Model, realizable k-ε two-layer, standard k-ω, and SST k-ω turbulence models are investigated in this study. The obtained numerical results demonstrate variations in resistance and the flow patterns around the submarine due to the effect of turbulence model. Based on the obtained results, the paper points out that, the choice of turbulence model significantly affects the frictional resistance of the submarine and the SST K-ω turbulence model provided the highest level of accuracy in comparison with experimental data. The model employed in this research is the DARPA SUBOFF submarine model","PeriodicalId":9736,"journal":{"name":"CFD Letters","volume":"2 2","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"CFD Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.37934/cfdl.16.10.126139","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Mathematics","Score":null,"Total":0}
引用次数: 0

Abstract

Up to now, there is no developed ‘universal’ turbulence model in CFD simulation, so employing an appropriate turbulence model is crucial for accurately predicting the hydrodynamics of a ship, especially for submarines. This study focuses on investigating the impact of turbulence models on the predicted results in frictional and pressure resistance components and flow features around the submarine at different ship velocities by the CFD method. Four various turbulence models consisting of the Reynolds Stress Model, realizable k-ε two-layer, standard k-ω, and SST k-ω turbulence models are investigated in this study. The obtained numerical results demonstrate variations in resistance and the flow patterns around the submarine due to the effect of turbulence model. Based on the obtained results, the paper points out that, the choice of turbulence model significantly affects the frictional resistance of the submarine and the SST K-ω turbulence model provided the highest level of accuracy in comparison with experimental data. The model employed in this research is the DARPA SUBOFF submarine model
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
湍流模型对潜艇阻力 CFD 计算影响的数值研究
迄今为止,在 CFD 模拟中还没有开发出 "通用 "的湍流模型,因此采用适当的湍流模型对于准确预测船舶(尤其是潜艇)的流体力学至关重要。本研究的重点是通过 CFD 方法研究湍流模型对不同船速下潜艇周围摩擦阻力、压力阻力分量和流动特征预测结果的影响。研究了四种不同的湍流模型,包括雷诺应力模型、可实现 k-ε 两层模型、标准 k-ω 模型和 SST k-ω 湍流模型。所获得的数值结果表明,由于湍流模型的影响,潜艇周围的阻力和流动模式发生了变化。根据获得的结果,论文指出,湍流模型的选择对潜艇的摩擦阻力有显著影响,与实验数据相比,SST K-ω 湍流模型的精度最高。本研究采用的模型是 DARPA SUBOFF 潜艇模型
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CFD Letters
CFD Letters Chemical Engineering-Fluid Flow and Transfer Processes
CiteScore
3.40
自引率
0.00%
发文量
76
期刊最新文献
Numerical Investigation of Thermal Performance for Turbulent Water Flow through Dimpled Pipe MHD Stagnation Point Flow of Micropolar Fluid over a Stretching/ Shrinking Sheet Unsteady MHD Walter’s-B Viscoelastic Flow Past a Vertical Porous Plate Effects of Activation Energy and Diffusion Thermo an Unsteady MHD Maxwell Fluid Flow over a Porous Vertical Stretched Sheet in the Presence of Thermophoresis and Brownian Motion Effect of Inlet Pressure on the Polyurethane Spray Nozzle for Soil Cracking Improvement: Simulations using CFD Method
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1