Modelling and simulation of the ship rapids-ascending ability in Lancang River Online publication date: Fri, 21-Dec-2018
by Zhao Zhizhou; Tong Sichen; Zhu Feng; Xu Guangxiang
International Journal of Computer Applications in Technology (IJCAT), Vol. 59, No. 1, 2019
Abstract: Ship sailing resistance is an important indicator to judge the navigation capacity of a waterway. In this paper the empirical formula of Zwaan Kopf is modified according to the ship model test results in Lancang River channel, tests reveal that the navigation capacity of the channel can be represented by a critical composite flow energy indicator ΔE = 1.20. In order to validate the reliability of experimental results, this paper established a two-dimensional numerical model to simulate the water flow and ship sailing process in the channel. The relationship of flow energy indicator and the sailing velocity is studied by simulating a typical 500t ship sailing in the channel of Lancang River, and the results show that the value of critical flow energy indicator ΔE in the channel of Lancang River by simulation fits well with the tests, so the simulation method proposed in this paper is reasonable and feasible, and the critical flow energy indicator simulated by this method has important reference value in engineering.
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