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Thin body motion under free surface with formation of final length cavity

机译:自由表面下的薄体运动并形成最终长度的腔

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摘要

The two-dimensional problem of high velocity moving slender body interaction with fluid free surface was regarded. Gravity was neglected as compared with fluid inertia. The problem is relevant to underwater motion of a bullet or shell, which could take place in orbital collisions of particles with fluid-filled containments. The problem is also relevant to evaluating wave-breakers effect on the streaming flow. The solution was obtained for the case of final length cavity formation behind the body. The solution allows determining free surface shape, drag and lift forces. In the limiting cases of relatively small depth or high compressibility, the obtained solution permitted analytical approximation.
机译:研究了高速细长体与自由流体相互作用的二维问题。与流体惯性相比,重力被忽略了。该问题与子弹或壳的水下运动有关,子弹或壳的水下运动可能发生在粒子与充满流体的容器的轨道碰撞中。该问题还与评估防波堤对流的影响有关。对于在身体后面形成最终长度的空腔的情况,获得了解决方案。该解决方案可以确定自由表面的形状,阻力和升力。在深度较小或可压缩性较高的极限情况下,所获得的解可以进行解析近似。

著录项

  • 来源
    《Acta astronautica》 |2011年第2期|p.46-51|共6页
  • 作者单位

    Faculty of Mechanics and Mathematics, Moscow M.V.Lomonosov State University, Moscow 119992, Leninskie Gory 1, Russia;

    rnFaculty of Mechanics and Mathematics, Moscow M.V.Lomonosov State University, Moscow 119992, Leninskie Gory 1, Russia;

    rnFaculty of Mechanics and Mathematics, Moscow M.V.Lomonosov State University, Moscow 119992, Leninskie Gory 1, Russia,Tainan Hydraulics Laboratory, Research Center of Ocean Environment and Technology, National Cheng Kung University, Taiwan;

    rnTainan Hydraulics Laboratory, Research Center of Ocean Environment and Technology, National Cheng Kung University, Taiwan;

    rnTainan Hydraulics Laboratory, Research Center of Ocean Environment and Technology, National Cheng Kung University, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fluid; compressibility; flow; small disturbances; cavitation; conformal mapping; boundary value problem;

    机译:体液;可压缩性流;小干扰;空化保形映射边值问题;

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