| 物块落水后运动过程的动力学分析 |
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| 引用本文： | 熊小峰,游森勇.物块落水后运动过程的动力学分析[J].数学的实践与认识,2011,41(14). |
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| 作者姓名： | 熊小峰 游森勇 |
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| 作者单位： | 江西理工大学理学院,江西赣州,341000 |
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| 摘 要： | 采用动力学的方法,对物块在流场中的运动进行了受力分析,通过动力学微分方程和边界条件分别得到物体静止进入水中和运动进入水中的物体运动轨迹方程.对于复杂形状,通过工程中常用的体积等效和截面等效的方法获得当量直径,将物块等效为球形,并且引入了空心率的概念用于表征物块形状参数对流场中受力的影响.对于溃口封堵的真实流场,可以采用重力相似准则转化为模型适用的小型流场情况,对其进行分析.
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| 关 键 词： | 封堵溃口 动力学模型 阻力系数 空心率 小型试验 |
Dynamical Analysis for Process of Objects Falling into Water |
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| XIONG Xiao-feng,YOU Sen-yong.Dynamical Analysis for Process of Objects Falling into Water[J].Mathematics in Practice and Theory,2011,41(14). |
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| Authors: | XIONG Xiao-feng YOU Sen-yong |
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| Institution: | XIONG Xiao-feng,YOU Sen-yong (Jiangxi Universtiy of Science and Technology,Scientific Faculty,Ganzhou 341000,China) |
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| Abstract: | The thesis analyzed the forces in the flow field using the method of dynamics technology.Through differential equations and bordering conditions.We worded out the both equations of the tracks while objects fail into water stationarily and dynamically. According to the intricate shaped objects,we got their equivalent diameter with simulated equivalent of volume and area which have been widely used in engineering.The objects have been equivalent to a sphericity to represent effect of objects' shape parameter ... |
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| Keywords: | seal breach dynamics model drag coefficient ratio of hollow small-size expreiment |
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