舰船设计与分析中的破船波建模

G. Weymouth, K. Hendrickson, D. Yue, D. Dommermuth, P. Adams, R. Hand
{"title":"舰船设计与分析中的破船波建模","authors":"G. Weymouth, K. Hendrickson, D. Yue, D. Dommermuth, P. Adams, R. Hand","doi":"10.1109/HPCMP-UGC.2006.46","DOIUrl":null,"url":null,"abstract":"Prediction of the performance and non-acoustical signature of surface ships which feature such effects as breaking waves, spray and air entrainment is still beyond the capabilities of standard numerical solution methods. The near-field flow about a surface ship is characterized by complex physical processes such as: (i) spray sheet and jet formation; (ii) strong free-surface turbulence interactions with (large-amplitude) breaking waves; (Hi) air entrainment and bubble generation; and (iv) post-breaking turbulence and dissipation. These physical phenomena still require resolutions that are not feasible in practical engineering flows, despite continuing advances in computational resources. A two-pronged approach is proposed to develop methods to accurately predict these complex physical systems. First, physics-based closure models for steep breaking waves in the presence of turbulence are developed with results from high-resolution direct numerical simulations of the Navier-Stokes equations. Second, cutting-edge parallel computing capabilities and newly developed solution techniques are utilized to simulate the free-surface flow around naval combatants moving at high speed. Direct numerical simulation is used to simulate an ensemble of breaking waves at moderate Reynolds numbers. Information derived from the breaking events in this study is being used as a first step in evaluating closure models for inclusion in existing LES and \"off-the-shelf\" RANS capabilities. Using NFA (numerical flow analysis), full scale simulations of a DDG model were performed. The simulations capture such features as wave breaking and air entrainment which are quantitatively compared to experimental results","PeriodicalId":173959,"journal":{"name":"2006 HPCMP Users Group Conference (HPCMP-UGC'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modeling Breaking Ship Waves for Design and Analysis of Naval Vessels\",\"authors\":\"G. Weymouth, K. Hendrickson, D. Yue, D. Dommermuth, P. Adams, R. Hand\",\"doi\":\"10.1109/HPCMP-UGC.2006.46\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Prediction of the performance and non-acoustical signature of surface ships which feature such effects as breaking waves, spray and air entrainment is still beyond the capabilities of standard numerical solution methods. The near-field flow about a surface ship is characterized by complex physical processes such as: (i) spray sheet and jet formation; (ii) strong free-surface turbulence interactions with (large-amplitude) breaking waves; (Hi) air entrainment and bubble generation; and (iv) post-breaking turbulence and dissipation. These physical phenomena still require resolutions that are not feasible in practical engineering flows, despite continuing advances in computational resources. A two-pronged approach is proposed to develop methods to accurately predict these complex physical systems. First, physics-based closure models for steep breaking waves in the presence of turbulence are developed with results from high-resolution direct numerical simulations of the Navier-Stokes equations. Second, cutting-edge parallel computing capabilities and newly developed solution techniques are utilized to simulate the free-surface flow around naval combatants moving at high speed. Direct numerical simulation is used to simulate an ensemble of breaking waves at moderate Reynolds numbers. Information derived from the breaking events in this study is being used as a first step in evaluating closure models for inclusion in existing LES and \\\"off-the-shelf\\\" RANS capabilities. Using NFA (numerical flow analysis), full scale simulations of a DDG model were performed. The simulations capture such features as wave breaking and air entrainment which are quantitatively compared to experimental results\",\"PeriodicalId\":173959,\"journal\":{\"name\":\"2006 HPCMP Users Group Conference (HPCMP-UGC'06)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-06-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2006 HPCMP Users Group Conference (HPCMP-UGC'06)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/HPCMP-UGC.2006.46\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 HPCMP Users Group Conference (HPCMP-UGC'06)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HPCMP-UGC.2006.46","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

水面舰艇的性能和非声学特征的预测,如破浪,喷雾和空气携带等影响,仍然超出了标准的数值求解方法的能力。水面舰艇的近场流具有复杂的物理过程,如:(1)喷片和射流形成;(ii)与(大振幅)破碎波的强自由表面湍流相互作用;(1)携气和气泡产生;(4)破碎后湍流和耗散。尽管计算资源不断进步,但这些物理现象仍然需要在实际工程流程中不可行的解决方案。提出了一种双管齐下的方法来开发准确预测这些复杂物理系统的方法。首先,根据对Navier-Stokes方程的高分辨率直接数值模拟的结果,开发了湍流存在下陡峭破碎波的基于物理的闭合模型。其次,利用先进的并行计算能力和新开发的求解技术来模拟高速移动的海军战斗人员周围的自由水面流动。采用直接数值模拟方法模拟了中等雷诺数下的破碎波系综。本研究中从突发事件中获得的信息被用作评估现有LES和“现成”RANS功能中包含的关闭模型的第一步。利用NFA(数值流动分析),对DDG模型进行了全尺度模拟。模拟捕获了波浪破碎和空气夹带等特征,并与实验结果进行了定量比较
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling Breaking Ship Waves for Design and Analysis of Naval Vessels
Prediction of the performance and non-acoustical signature of surface ships which feature such effects as breaking waves, spray and air entrainment is still beyond the capabilities of standard numerical solution methods. The near-field flow about a surface ship is characterized by complex physical processes such as: (i) spray sheet and jet formation; (ii) strong free-surface turbulence interactions with (large-amplitude) breaking waves; (Hi) air entrainment and bubble generation; and (iv) post-breaking turbulence and dissipation. These physical phenomena still require resolutions that are not feasible in practical engineering flows, despite continuing advances in computational resources. A two-pronged approach is proposed to develop methods to accurately predict these complex physical systems. First, physics-based closure models for steep breaking waves in the presence of turbulence are developed with results from high-resolution direct numerical simulations of the Navier-Stokes equations. Second, cutting-edge parallel computing capabilities and newly developed solution techniques are utilized to simulate the free-surface flow around naval combatants moving at high speed. Direct numerical simulation is used to simulate an ensemble of breaking waves at moderate Reynolds numbers. Information derived from the breaking events in this study is being used as a first step in evaluating closure models for inclusion in existing LES and "off-the-shelf" RANS capabilities. Using NFA (numerical flow analysis), full scale simulations of a DDG model were performed. The simulations capture such features as wave breaking and air entrainment which are quantitatively compared to experimental results
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信