バラスト水交換時におけるタンク内流体の挙動に関する研究 : 2次元タンクモデルにおける実験および数値解析結果について

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This thesis reports some results of simulation about the 2-dimension ballast tank's fluid motion included volume less situation in time step domain. Discharged ballast water makes potentially of some problems for the sea environment. In charged ballast water, much kind of spices were included and these are transformed from one port to other. Breed spices, in discharge sea or water, may probe ecological harmful include expulsion of native organisms. Consequently human society has some bad inference from these matters. Therefore, on the ship, charged ballast water is exchanged at the deep open sea in major navigation root. Ballast water management might become more strictly on new international convention about ballast water under examination by IMO. Ballast water exchange is performing as one of the practicable method at ballast water management actually. However, it is not enough that various verification for ballast water exchange. Especially, for sediments which are one of the priority management targets, it is important that knowledge of sediments motion in ballast water exchange. In this purpose, the particular analysis of ballast tank fluid motion in ballast water exchange situation is necessary. This thesis shows that the result of numerical simulation about two-dimensional tanks fluid motion assume discharge situation as the first experiment for preceding matters. For the verification of simulation result, we performed the experiment two-dimensional rectangular tank and compared simulation results. On the result, we obtained same value between simulation results and experiment one.
社団法人日本航海学会の論文
2003-03-25

バラスト水交換時におけるタンク内流体の挙動に関する研究 : 2次元タンクモデルにおける実験および数値解析結果について

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