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A time-efficient CFD approach for hydrodynamic coefficient determination and model simplification of submarine
Gao T(高婷); Wang YX(王亚兴); Pang YJ(庞永杰); Chen, Qinglong; Tang YG(唐元贵)
作者部门水下机器人研究室
关键词Computational Fluid Dynamics Hydrodynamic Coefficients Maneuverability Underwater Vehicles
发表期刊Ocean Engineering
ISSN0029-8018
2018
卷号154页码:16-26
收录类别SCI ; EI
EI收录号20181304955326
WOS记录号WOS:000430762400002
产权排序2
资助机构National Key Research and Development Program of China ; National High Technology Research and Development Program of China (863 Program)
摘要Maneuverability is one of the most important performance characteristics of submarines. Hydrodynamic model is increasingly relied on as a design approach to determine the inherent motion behavior of a proposed submarine before construction. Standard submarine motion equations are the most used hydrodynamic model, in which more than 100 coefficients need to be estimated. These coefficients have to be determined by captive model tests, semi-empirical method and potential flow method on the basis of existing approach. The separately determining approach makes it difficult to assess model reliability. This paper proposes a time-efficient approach for the estimation of hydrodynamic coefficients using computational fluid dynamics (CFD) method. Instead of a repetitive and time-consuming process, the proposed spatial captive motion could provide all necessary information for determination of all required coefficients in only one simulation. Linear regression, based on the least square method, is employed to determine coefficients in hydrodynamic model. Statistical investigation, correlation and significance analysis, indicates that the standard submarine motion equations can be further simplified when submarine moving forward with small perturbations along other directions. The final simplified motion equations have much fewer components than the original model while fitting accuracy remained. Validation results prove that spatial captive motion simulation and the simplification approach employed in this paper are effective and reliable. It should have a large scope in further maneuverability research.
语种英语
WOS类目Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
关键词[WOS]DYNAMIC OVERSET GRIDS ; SELF-PROPULSION ; SIMULATION
WOS研究方向Engineering ; Oceanography
资助项目National Key Research and Development Program of China[2016YFC0300802] ; National High Technology Research and Development Program of China (863 Program)[2011AA09A106]
引用统计
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/21734
专题水下机器人研究室
通讯作者Wang YX(王亚兴)
作者单位1.State Key Laboratory of Science and Technology on Autonomous Underwater Vehicle, Harbin Engineering University, Harbin 150001, China
2.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
推荐引用方式
GB/T 7714
Gao T,Wang YX,Pang YJ,et al. A time-efficient CFD approach for hydrodynamic coefficient determination and model simplification of submarine[J]. Ocean Engineering,2018,154:16-26.
APA Gao T,Wang YX,Pang YJ,Chen, Qinglong,&Tang YG.(2018).A time-efficient CFD approach for hydrodynamic coefficient determination and model simplification of submarine.Ocean Engineering,154,16-26.
MLA Gao T,et al."A time-efficient CFD approach for hydrodynamic coefficient determination and model simplification of submarine".Ocean Engineering 154(2018):16-26.
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