ステップ状の水底を有するタンク内でのHydraulic Jumpの伝播と浅水方程式の近似解

概要

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This paper deals with the propagation of hydraulic jumps travelling in a tank with step-like bottom and approximate solutions of shallow water equations. Random Choice Method (RCM) is a usefully numerical technique for solving the shallow water equations. There are, however, some difficult problems to analyze fluid dynamic behavior of the deck water by using RCM, for the flow of water become complicated on account of existence of the camber and the hatch on the deck. In this report, on the supposition that shipping water is on the deck, the hydraulic jumps travelling across step-like bottom, which abruptly changes the tank depth at a location, is dealt. Possibility of application of modified RCM to the tank is discussed. Model tank tests are performed in order to examine usefulness for applying modified RCM to these problems. The experimental results agree well with the calculating results by modified RCM.
1992-03-29