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将实验室里得到的掺气浓度和流速量测成果同阿维摩尔(Aviemore)溢流坝最近得到的原型成果进行对照比较。比较后假定,如果选用气体浓度为0.9的深度作为特征深度,那么,此深度内的平均掺气浓度只是坡度的函数。同理,掺气浓度的分布也可由坡度来确定。实验室里和现场测定的流速分布也作了比较,认为水速置测成果与一般流速分布是一致的。根据上述这些,连同由试验结果计算出的达西(Darcy)摩阻系数一起,导出一个简单方法,以用于预测位于长溢流坝末端均匀掺气水流的设计参数。
The results of the aeration concentration and flow rate measurements obtained in the laboratory were compared with the recent prototype results from the Aviemore overflow dam. After comparison, it is assumed that if the depth of gas concentration of 0.9 is chosen as the characteristic depth, then the average concentration of the gas within this depth is only a function of the slope. By the same token, the distribution of aeration concentration can also be determined by the slope. The laboratory and field measurements of the velocity distribution are also compared, that the results of the water velocity measurement and the general flow rate is consistent. Based on these, along with the Darcy friction coefficient calculated from the test results, a simple method is derived for predicting the design parameters of a uniformly aerated flow at the end of a long overflow spillway.