A Modified Side-View Model for Hydro-Thermal Analysis in Man-made Reservoirs
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概要
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A side-view finite element model to simulate thermal stratification in man-made reservoirs is proposed. Using flat-shaped rectangular, trapezoidal and triangular elements which consist of vertical and horizontal 1-D elements, the model can avert numerical inaccuracy caused by large aspect ratio and can consider the depth dependent field variables as vertically continuous. Treatment of the velocities near the inclined slip bed is modified to satisfy the continuity condition and treatment of confluences is newly introduced to meet the complex geometry conditions. Vertical eddy diffusivities are estimated by newly proposed parameterization using Brunt-Vaisfili frequency. Capability of the model is investigated through few demonstrative computations for hypothetical and real reservoirs, comparing the computed results and the theoretical or observed data available. As a result the present model is proved to be a practical tool for hydro-thermal analysis in man-made reservoirs and expected to contribute toward the development of water quality models.
- 社団法人 農業農村工学会の論文
社団法人 農業農村工学会 | 論文
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