摘要
先导式溢流阀的先导阀、主阀口、节流孔的流量系数与雷诺数存在着复杂的函数关系,为了了解这种关系,笔者在建立先导式溢流阀的先导锥阀口、主阀锥阀口和固定节流器的流量系数随雷诺数变化的函数模型的基础上,应用TKSolver软件对先导式溢流阀静态特性进行计算机仿真。仿真结果表明:在100L/min工作流量范围,先导阀口始终处于层流状态;而主阀口由层流向紊流转变的临界流量为8.5L/min。
We first establish the models of discharge coefficient varying with Reynolds number of both variable and fixed orifices and steady-state characteristics of the pilot-relief valve. Then, we simulate the static characteristics by using TK Solver. The result shows that the flow through the pilot poppet is always laminar under flow of 100 L/min, and the critical flow from to turbulent flow of the main poppet is 8.5 L/min. The result is used in the design and optimization of pilot relief valves.
出处
《机械科学与技术》
CSCD
北大核心
2009年第12期1677-1679,1684,共4页
Mechanical Science and Technology for Aerospace Engineering
