12A窄高型尾水管稳定性分析

Analysis on the stability of draft tube with 12A high-narrow type

选取了一个弯肘形尾水管,保持肘管尺寸不变,只改变尾水管直锥段尺寸形成6种尾水管,分别比较了6种尾水管高度在某工况下时的压力特征,基于CFD分析技术,充分说明了12A窄高型尾水管性能良好。

This paper selects elbow draft tube,keeps elbow draft tube size unchangeable,only changes size at vertical cone segment of the draft tube,and forms 6 kinds of draft tubes.And then,it respectively compares pressure properties of 6 kinds of draft tube height under certain working condition.Based on CFD analysis technique,it fully illustrates the good performance of the draft tube with 12A high-narrow type.