摘要
在多个长廊阻抗式尾水调压室水力学模型试验中均出现贯穿性立轴漩涡,运用三维计算流体力学方法建立了气液两相流VOF模型,分析立轴漩涡产生的原因。计算结果表明,阻抗孔口面积、调压室体型、尾水洞长度等对立轴漩涡均有明显的影响。
In a number of hydraulic model tests of the strip-shaped and restricted-orifice tailrace surge chamber,penetrating erect swirl all came forth without exception. With the method of three- dimensional computational fluid dynamics, the VOF model of two phase flow is set up and the cause of erect swirl is analyzed in this article. The result shows that the area of restricted orifice, the bodily form of surge chamber and the length of tail race tunnel all have an obvious impact on the erect swirl.
出处
《水电能源科学》
2008年第4期105-107,168,共4页
Water Resources and Power
关键词
调压室
立轴漩涡
计算流体力学
surge chamber
erect swirl
computational fluid dynamics
