Hydraulic Experiment on Characteristic of Fluid for Structure Around in Quasi-steady Flow

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  • 準定常流中における構造物周りの流体特性に関する水理実験
  • ジュンテイジョウリュウ チュウ ニ オケル コウゾウブツ マワリ ノ リュウタイ トクセイ ニ カンスル スイリ ジッケン

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Abstract

We carried out hydraulic experiments satisfied quasi-steady flow of tsunami floods using circulating water open channel and investigated characteristics of the fluid for a model structure around in the flow. Especially, we aim to clarify the relationship of inundation depth, velocity and pressure between the front and the side of the structure. As a result, the inundation depth of the structural side decreases about 0.5 times than that of the front and the velocity increases by around 2 times. Furthermore, if the inundation depth is greater than 0.5 times of initial depth, the flow change from subcritical flow to supercritical flow and the pressure of the structural side is different by measurement locations. The relationship of the inundation depth and pressure between the front and the side of the structure are expressed as an exponential function.

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