转叶螺旋流消能装置消能过程分析

发布时间：2019-05-08 01:52

【摘要】：为从微观方面探究转叶螺旋流消能装置的消能过程,验证其装置结构的合理性以及研究各参数对消能效果的影响,在装置试验研究的基础上,运用Fluent软件对其进行三维模拟计算后得:不同参数下装置各测点的压力值和转叶组合段前后特征断面的压力分布图。通过对数值模拟计算结果分析得:数值模拟显示的消能过程符合装置试验研究时的猜想;模拟计算所得的压力变化规律与试验研究结果一致;在一定条件下,装置的消能效率与雷诺数和转叶孔板间扭转角度分别成正比关系;转叶螺旋流消能装置的消能效果优于同类孔板射流装置的消能效果。不仅验证了转叶螺旋流消能装置的合理性,还为其结构的优化与实际应用提供理论支持。
[Abstract]:In order to probe into the energy dissipation process of rotating blade spiral flow energy dissipation device from the microscopic aspect, verify the rationality of the device structure and study the influence of each parameter on the energy dissipation effect, on the basis of the experimental study of the device, Three-dimensional simulation calculation is carried out by using Fluent software: the pressure value of each measuring point of the device under different parameters and the pressure distribution map of the characteristic section before and after the combined section of the rotating blade are obtained. Through the analysis of the numerical simulation results, it is found that the energy dissipation process shown by the numerical simulation accords with the conjecture in the experimental study of the device, and the pressure variation law obtained by the simulation calculation is consistent with the experimental research results. Under certain conditions, the energy dissipation efficiency of the device is proportional to Reynolds number and torsion angle between rotating vane orifice plates, and the energy dissipation effect of rotating blade spiral flow energy dissipation device is better than that of similar orifice plate jet device. It not only verifies the rationality of the rotating blade spiral energy dissipation device, but also provides theoretical support for its structure optimization and practical application.
【作者单位】：太原理工大学水利科学与工程学院;
【分类号】：TV131.6

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