NUMERICAL SIMULATIONS ON ORIFICE ENERGY DISSIPATION

机译：孔口能量耗散数值模拟

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Orifice energy dissipator is one of the energy dissipation methods in hydraulic engineering. The mechanism of orifice energy dissipater is not fully understood yet. Many factors may influence the efficient of the orifice energy dissipation. In present research both dimension analysis and numerical analysis are conducted to investigate the influence of the factors. First, a series of factors are combined to investigate the influences. Then, the main factors are identified: Reynolds number, the diameter ratio and the distance between orifices. Numerical simulations are conducted with a k-ε two-equation turbulence model, the results of the simulations agree well with the results from experiments and dimensional analysis in references.

机译：孔磁能散热器是水力工程中的能量耗散方法之一。孔口能量昏迷的机制尚未完全理解。许多因素可能影响孔口耗能的有效性。在目前的研究中，进行了维度分析和数值分析，以研究因素的影响。首先，组合一系列因素来研究影响。然后，确定主要因素：雷诺数，直径比和孔之间的距离。数值模拟用K-ε两方程湍流模型进行，模拟结果与参考的实验和尺寸分析的结果很好。

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《Congress of Asia and Pacific Division of International Association of Hydraulic Engineering and Research》|2008年||共5页
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中图分类水资源调2查与水利规划;
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orifice energy dissipation; numerical simulations; reynolds number (Re); diameter ratio (d/D); distance between orifices and the shape of the orifice (L/D);

机译：孔口能量耗散;数值模拟;雷诺数（RE）;直径比（D / D）;孔口之间的距离和孔口的形状（L / D）;

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NUMERICAL SIMULATIONS ON ORIFICE ENERGY DISSIPATION

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