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对掺气发展区流速分布的试验研究发现,将水深和流速无因次化后,该区域水流断面流速分布形态保持极高的相似性,最大断面流速对应水深沿程保持恒定,本次试验中最大流速都保持在无因次水深约为0.6处。同时发现,采用合适的常数,断面最大流速以下的流速分布可以与指数公式计算值吻合较好,即仍满足指数分布公式,而最大流速以上的流速分布亦可用修改的指数公式描述。
The experimental study on the velocity distribution in the aerated zone found that after the non-dimensional water depth and flow rate, the distribution of the flow velocity in the region maintained a very high similarity, and the maximum flow rate remained constant along the water depth. In this experiment The maximum flow rate is maintained at a dimensionless depth of about 0.6. At the same time, it is found that the flow rate distribution below the maximum flow velocity of the section can be in good agreement with the exponential formula using appropriate constants, ie, the exponential distribution formula is still satisfied, while the flow velocity distribution above the maximum flow rate can also be described by a modified exponential formula.