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给出了50Hz的高频蓄冷器的交变流动阻力特性实验结果。以雷诺数和无因次距离为准则数拟合了交变流动蓄冷器最大和平均压降因子的准则关系式。与稳态经验公式得出的压力降的值进行比较,发现交变流动蓄冷器的压力降为稳态流动的2~3倍。同时,也分析了不同丝网目数所对应的极值雷诺数以及因次相位差的准则关系式。
The experimental results of alternating current resistance of 50Hz high frequency regenerator are given. Reynolds number and dimensionless distance as a guideline to fit the maximum alternating current regenerator and the average pressure drop of the standard relationship. Compared with the steady-state empirical formula for the pressure drop, it is found that the pressure drop in the ACF is 2 to 3 times that of the steady-state flow. At the same time, we also analyze the criterion relation between the extremum Reynolds numbers and the order of phase difference corresponding to different mesh numbers.