弓形断面管道的紊流速度分布

Water velocity in pipe of arching section

针对弓形断面管道的紊流速度分布进行了研究,基于圆形断面管道紊流的理论基础之上,采用普朗特半经验理论公式,并且结合一定的假设条件来分析、推导弓形断面管道的紊流速度分布公式,并将公式用数值模拟来计算一定条件下的弓形断面管道的紊流速度分布,与大量的实验相对比,对比结果良好。从而说明了的研究方法及程序较好的模拟了弓形断面管道的紊流速度分布情况,为下一步研究淤积管道的解决方法提供了理论依据。

The study on the turbulent velocity in arch cross section pipeline is based on the theory of circular cross section pipeline. It adopts the Prandtl semi-empirical theoretical formula, and combines some suppositions to analyze and deduce the turbulent velocity formula in arch cross section pipeline. In the experiment, we simulate the real velocity in arch cross section pipeline with the formula. Compared with abundant experiments, the tested results are extremely good. Thus it indicates that the technique and procedure are good in simulating the turbulent velocity in arch cross section pipeline, and it will provide a theoretical basis for further study.