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タイトル別名
  • Development and Testing of the Seawater Intake Works with Cylindrical Holes
  • エンコウシキ カイスイ ドウニュウコウ ノ カイハツ ケンキュウ

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This paper reports on the development and testing of the new type seawater intake works using wave energy. The one is 'the seawater intake works with cylindrical holes',. one of the most important characteristics of the works is to having the aeration ability for the improvement of aquatic environment. A hydraulic model test on the works was conducted in the basin and in the channel. The adequate specifications of the works had to be found by trial and error. According to the various studies, the works has proved to be good enough. The main results are as follows : (1) The works with 10 meters length has the ability of training seawater 40,000m3/day when the coastal waves has the condition that is head incident, 0.5 meter significant wave height and 4 seconds wave period ; (2) In case of the tide level locates the quarter diameter below from the center of the cylindrical hole ; the works functions the most effectively ; (3) The reflection coefficient is 0.63 to 0.65 ; the transmission coefficient is no detected in random waves ; and (4) When the ceiling slab cIoses the wave chamber, the air duct with 0.5 to 1 percent of the ceiling slab area must be constructed to prevent air compression.

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