舶用ベルマウス発生渦の実験的研究

概要

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This paper shows the result of the model test for the flow vortex around bellmouth in tank, for which the following items were tested in the scale model. (1) To measure height and shape of air entraining vortex. (2) Mutual interference of vortex at double bellmouth. (3) Effectiveness of baffle plate against flow vortex. Judging from the above model test, the followings are concluded. (1) The height and shape of actual air entraining vortex is able to be estimated by the following formula. (i) For height: [numerical formula] For shape: h=-Г^2/8π^2gr^2 (2) When two bellmouths are installed in one tank, it is unnecessary to consider the mutual interference between each vortex. (3) The baffle plate is effective to restrain the air entraining vortex, and the face plate of bottom longitudinal in tank is too.
社団法人日本船舶海洋工学会の論文
1977-08-15