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arXiv 0801.2295physics.ao-phphysics.flu-dyn
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临界现象的一种表现形式--船感生孤子

Ship-induced solitons as a manifestation of critical phenomena

Stanyslav Zakharov, Alexey Kryukov

摘要:

当船舶在等深水库中作小加速度运动时,会受到类似于与水下岩石碰撞的突然水动力冲击,在水面上产生异常的孤立波。分析了运动舰船诱导孤子形成的因素。重点是约翰·斯科特·罗素观察到的现象超过170年前,当突然停止的船之前发生的异国情调的水圆顶。在关于孤立波的稳定性和数学描述的争论的戏剧性变化中,“罗素波”为什么会出现的问题一直没有被提出来,尽管试图重建它的努力总是失败的。在我们的报告中,描述了揭示著名事件作为临界现象的原理的条件。在均匀水深的水库中,船舶可能会遇到一个动态障碍,其速度和加速度限制很小。在较宽的参数范围内,舰船产生的卫星波可以转化为不同的锁定孤子。这些现象可以被归类为一个广泛的类别的动态屏障效应,包括过渡的飞机通过音障。

英文摘要:

A ship, moving with small acceleration in a reservoir of uniform depth, can be subjected to a sudden hydrodynamical impact similar to collision with an underwater rock, and on water surface unusual solitary wave will start running. The factors responsible for formation of solitons induced by a moving ship are analyzed. Emphasis is given to a phenomenon observed by John Scott Russell more 170 years ago when a sudden stop of a boat preceded the occurrence of exotic water dome. In dramatic changes of polemic about the stability and mathematical description of a solitary wave, the question why "Russell's wave" occurred has not been raised, though attempts its recreation invariably suffered failure. In our report the conditions disclosing the principle of the famous event as a critical phenomenon are described. In a reservoir of uniform depth a ship can confront by a dynamic barrier within narrow limits of ship's speed and acceleration. In a wider interval of parameters a ship generates a satellite wave, which can be transformed in a different-locking soliton. These phenomena can be classified into an extensive category of dynamic barrier effects including the transition of aircrafts through the sound barrier.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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