E311 不透過越流型水制周辺の非定常流れ構造に関する三次元解析

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  • 3D Computations of Open Channel Flows with Submerged Spur Dikes by Means of a Non-Linear k-ε Model

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3D flow structures around sub-merged skewed spur dikes are numerically investigated. The basic equations of the numerical model are derived on a generalized curvilinear movable coordinate system with full-staggered arrangement of hydraulic variables. A 2nd order non-linear k-ε model is adopted as a turbulence model to simulate the complex turbulent flows with vortex shedding from the edge of the spur dikes. Unsteady behavior of the flows with upstream and upstream inclined spur dikes is examined through the comparison with the experimental results.

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