According to two-dimensional steady value simulation of multi-wheel diameter size of tubular turbine for cooling tower and based on the continuity equation, momentum equation and turbulence kt equations, the speed of the flow field and pressure distribution variation can be gat. The final priority efficient runner diameter program is determined by comparison among the results of the five sizes.%基于连续方程、动量方程和湍流方程的k-ε模型,对冷却塔专用的贯流式水轮机进行了多转轮直径尺寸下二维定常数值模拟,获得了流场的速度、压力分布变化规律,并且对5种尺寸下的数值模拟结果进行比较分析,从而确定了一个效率优先目标下的最终转轮直径方案.
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