| Numerical Treatments and Applications of the 3D Transient Green Function |
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| 作者姓名： | 朱仁传 朱海荣 申亮 缪国平 刘应中 |
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| 作者单位： | The State Key Laboratory of Ocean Engineering School of Naval Architecture，Ocean and Civil Engineering，Shanghai Jiao Tong University，The State Key Laboratory of Ocean Engineering，School of Naval Architecture，Ocean and Civil Engineering，Shanghai Jiao Tong University，Department of Naval Architecture and Marine Engineering，University of Strathclyde Glasgow，Scotland，UK，The State Key Laboratory of Ocean Engineering，School of Naval Architecture，Ocean and Civil Engineering，Shanghai Jiao Tong University，The State Key Laboratory of Ocean Engineering，School of Naval Architecture，Ocean and Civil Engineering，Shanghai Jiao Tong University，Shanghai 200030，China，Shanghai 200030，China，Shanghai 200030，China，Shanghai 200030，China |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | How to evaluate time-domain Green function and its gradients efficiently is the key problem to analyze ship hydrodynamics in time domain.Based on the Bessel function,an Ordinary Differential Equation(ODE)was derived for time-domain Green function and its gradients in this paper.A new efficient calculation method based on solving ODE is proposed.It has been demonstrated by the numerical calculation that this method can improve the precision of the time-domain Green function.Numerical research indicates that it is efficient to solve the hydrodynamic problems.
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| 关 键 词： | 压力 模拟技术 3D技术 船舶工程 |
Numerical Treatments and Applications of the 3D Transient Green Function |
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| ZHU Ren-chuan,ZHU Hai-rong,SHEN Liang,MIAO Guo-ping,LIU Ying-zhong.Numerical Treatments and Applications of the 3D Transient Green Function[J].China Ocean Engineering,2007,21(4):637-646. |
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| Authors: | ZHU Ren-chuan ZHU Hai-rong SHEN Liang MIAO Guo-ping LIU Ying-zhong |
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| Institution: | [1]The State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering Shanghai Jiao Tong University, Shanghai 200030, China [2]Departmeat of Naval Architecture and Marine Engineering, University of Strathclyde, Glasgow, Scotland, UK |
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| Abstract: | How to evaluate time-domain Green function and its gradients efficiently is the key problem to analyze ship hydrodynamics in time domain.Based on the Bessel function,an Ordinary Differential Equation(ODE)was derived for time-domain Green function and its gradients in this paper.A new efficient calculation method based on solving ODE is proposed.It has been demonstrated by the numerical calculation that this method can improve the precision of the time-domain Green function.Numerical research indicates that it is efficient to solve the hydrodynamic problems. |
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| Keywords: | transient Green function series expansion asymptotic expression ordinary differential equation hydrodynamics |
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