3D-MPS法による数値魚道の構築に関する基礎的検討 DEVELOPMENT OF NUMERICAL FISHWAY BY 3D MPS METHOD
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A design method of a fishway has been established on the basis of experimental hydraulics. However, a more rational design is enabled if a computational hydrodynamics, which has progressed rapidly in late years, is utilized. In this paper, a numerical fishway by three dimensional particle method is proposed to express two characteristics of fishway as follows: a three dimensional locally rapidly changing flow under complicated boundary condition of fins; and a free surface flow with a fragmentation of water, or a splash. As for a stream-type fishway, a vertical distribution of flow velocity calculated by the numerical fishway agrees well with results of previous hydraulic experiments. And a circulating flow cell in a transverse cross section is calculated for a further investigation of flow structure in a fishway.
- PROCEEDINGS OF HYDRAULIC ENGINEERING
PROCEEDINGS OF HYDRAULIC ENGINEERING (50), 853-858, 2006
Japan Society of Civil Engineers