本文介绍了利用流场显示技术对导叶端面间隙流态进行试验研究的结果。
The results of experimental study of flow pattern in the end clearance of guide-vane of water-turbine by means of visualization are presented in this paper.
水轮机的导叶端面间隙对整个水轮发电机组的效率指标及安全稳定运行有着重要影响。
It is highly important to the efficiency guide line of the whole hydraulic equipment unit and to the unit runs safety and steadily that the wicket gate end clearance of the hydraulic turbine.
加工过程中，通过数据采集卡检测电极间的加工电压变化或者回路中的电流变化，自适应控制电极间的端面间隙。
The gap between the electrodes can be self-adaptive controlled by detecting the voltage or the current changes during the machining duration.
通过求解三维层流N-S方程，得到了端面气膜稳态压力场及速度场分布，分析了气体在端面间隙内的流动形式。
The three-dimentional laminar Navier-Stokes equations were solved for getting the gas film pressure and velocity distributions in the steady state, and the flow styles in the clearance were analyzed.
利用有限元素法对间隙内的雷诺方程进行求解，得到了螺旋线槽气体密封端面间隙内气体的压力分布和三维膜压分布图。
Using finite element methods solves two-dimensional compressible Reynolds equation. As a result, the pressure distribution over the entire seal interface is obtained.
通过在清水和浑水两种不同条件下对导叶端面间隙压力的测量，得到了不同工况下的空心导叶和实心导叶端面间隙压力分布曲线。
The pressure distribution in the end clearance of hollow guide-vane and solid guide-vane is obtained by surveying the pressure in the end clearance under the conditions of clean water and muddy water.
如此办法不能控制漏料，则可能是石墨垫或铜环磨损较严重(如密封端面不光滑，间隙大)。
So the means cannot control leak the material, then possibly is the graphite pad or the copper collar wears (for example seal face not to be smooth seriously, gap big).
端面有间隙、无凸台对接是指在上、下套管之间留有一定间隙，上、下主弦杆端面同时接触对接。
End face with a gap, no boss butt is refers to the upper and lower casing left a certain gap between the upper and lower main chord rod end face at the same time contact.
端面有间隙、带凸台对接外形是指在标准节上部主弦杆上焊有定位凸台，定位凸台伸人另一标准节主弦杆内，上、下套管之间留有一定间隙配合定位。
End face with a gap, no boss butt is refers to the upper and lower casing left a certain gap between the upper and lower main chord rod end face at the same time contact.
流体注入压力越高，热弹变形量越大，密封端面平衡间隙亦越大。
A higher pressure of the inlet fluid will result in the increases of thermo-elastic deformation and the balancing film thickness.
流体注入压力越高，热弹变形量越大，密封端面平衡间隙亦越大。
A higher pressure of the inlet fluid will result in the increases of thermo-elastic deformation and the balancing film thickness.
应用推荐