Generation of Waves of Small Amplitude by an Obstacle Placed on the Bottom of a Running Stream

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概要

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• The study of two-dimensional, irrotational and steady state motion generated by an obstacle placed on the bottom of a running stream is made in terms of the linearised theory. It turns out that for a constant value of the parameter (gh/U^2)>1, U and h being respectively the velocity and the depth of the stream, the wave length of the waves does not change with different obstacles whereas the amplitude does so. The dependence of amplitude on different shapes of obstacles leads to an interesting situation in the studies where it is observed that for certain shapes no wave-like motion occurs even in the case √<gh>>U, a condition where the wave motion is always expected to take place. The physical consequence is that such a body, when placed in a running stream, would not experience any resistance dut to the wave formation.

• 一般社団法人日本物理学会の論文
• 1973-02-05

著者

• Gazdar A.Sattar

  Department of Physics, Faculty of Science, University of Tokyo

関連論文

• Generation of Waves of Small Amplitude by an Obstacle Placed on the Bottom of a Running Stream

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