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采用最新CFD方法对具体工程泄洪闸水流流态进行模拟分析.先给出了数学模型和计算方法;然后结合模型实验成果,用CFD详细分析了泄流能力与水面线、压力、流速等流场参数的规律性,弄清了不良流态的原因;进而提出加大侧墙弧度以消除吸气漩涡及加大孔口断面避免脱流的措施,通过3个方案对比分析验证了其效果,并得出最佳方案的泄流能力、进水口流态及泄槽内流态、压力和速度的分布规律.
Using the latest CFD method to simulate the flow pattern of the sluice gate, the mathematical model and calculation method are given first. Then the flow field of discharge, water pressure, flow velocity and so on are analyzed in detail with CFD The regularity of the parameters and clarify the reason of the bad flow state; and then put forward measures to increase the curvature of the side wall to eliminate the aspiration vortex and increase the cross-section of the orifice to avoid the flow off, and the comparison and analysis of the three schemes prove the effect Draw the best program of discharge capacity, inlet flow and leakage tank flow, pressure and velocity distribution.