| AN ASYMPTOTIC SOLUTION OF VELOCITY FIELD IN SHIP WAVES |
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| 作者姓名： | WU Yun-gang TAO Ming-de |
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| 作者单位： | WU Yun-gang，TAO Ming-de Department of Mechanics and Engineering Science and The Key Laboratory of Wave Scattering and Remote Sensing Information，Fudan University，Shanghai 200433，China |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | 1. INTRODUCTION It is well known that behind the ships, V-shaped steady-state ship waves are created while ships move on the water. The classical Kelvin ship wave pattern, which is obtained when a ship is taken as a point impulse moving at a constant velo…
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| 关 键 词： | 船波 速率场 细微感觉 渐近解 |
| 收稿时间： | 2005-06-15 |
AN ASYMPTOTIC SOLUTION OF VELOCITY FIELD IN SHIP WAVES |
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| WU Yun-gang TAO Ming-de.AN ASYMPTOTIC SOLUTION OF VELOCITY FIELD IN SHIP WAVES[J].Journal of Hydrodynamics,2006,18(4):387-392. |
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| Authors: | WU Yun-gang TAO Ming-de |
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| Affiliation: | 1. Ludwig-Franzius-Institute for Hydraulic, Estuarine and Coastal Engineering, Leibniz Universität Hannover, Hannover, Germany;2. International Research Institute of Disaster Science, Tohoku University, Sendai, Japan;3. Department of Civil Engineering, Faculty of Engineering, University of Ottawa, Canada;1. School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China;2. Deepwater Engineering Research Center, Dalian University of Technology, Dalian, 116024, China;3. Centre for Ships and Ocean Structures, Norwegian University of Science and Technology, NO-7491, Trondheim, Norway;1. State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai, China;2. School of Physics, Astronomy & Computational Sciences, George Mason University, Fairfax VA, USA;1. School of Mathematical Sciences, Queensland University of Technology, QLD 4001, Australia;2. Australian Maritime College, University of Tasmania, Launceston, TAS 7248, Australia |
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| Abstract: | The stationary phase method in conventional Lighthill's two-stage scheme to get the expressions of the velocity field was given up in this paper. The method that Ursell had used in deducing the elevation expression of ship wave was adopted, and an asymptotic solution of velocity field of ship waves on an inviscid fluid that is perfectly fit for the region inside and outside the critical lines was obtained. It is very convenient to be used in SAR technique. |
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| Keywords: | ship waves velocity field remote sensing asymptotic solution |
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