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網いけすの力学的特性


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Title: 網いけすの力学的特性
Other Titles: The Mechanical Characteristics of a Netting Store Pot
Authors: 永松, 公明 / 西ノ首, 英之 / 中才, 啓
Authors (alternative): Nagamatsu, Kimiaki / Nishinokubi, Hideyuki / Nakasai, Kei
Issue Date: Mar-1986
Publisher: 長崎大学水産学部
Citation: 長崎大学水産学部研究報告, v.59, pp.1-10; 1986
Abstract: The mechanical characteristics such as the deformation and resistance of a netting store pot which is immersed in streaming current were studied experimentally. In the course of experiment, the various shape of the netting store, pot such as a square, octagonal and circular type were employed. The deformation of the netting store pot was defined by measuring an oblique angle of the deformed netting against the current. The deformation by the current become large according to the order of the square, circular and octagonal type. It was found that the resistance of the square type agrees well with the Tauti's approximation. The shape of a mesh also have an effect on the deformation, that is, the deformation of a rhomb mesh was larger than that of a square mesh. The experiment on effect of the variation of D/L of mesh to the deformation and resistance were carried out, and it was found that the variation have an effect considerably on the deformation and resistance in the range of less than 0.2m/s of the current and they are not affected very much in the vicinity of 0.4m/s. Furthermore, the experiments of the linked netting store pots were carried out. It can be considered that there is no effect of the distance between two linked pots on the deformation and resistance in the range of less than 0.2m/s of the current, and it is to be recommended that the distance between two pots is nearly equal to the width of the pot. And it was found that the larger number of linkage, the smaller the deformation and resistance of each one of linked pots.
URI: http://hdl.handle.net/10069/30336
ISSN: 05471427
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:第59号

Citable URI : http://hdl.handle.net/10069/30336

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