摘要
针对高压多级离心泵口环密封的动力学特性求解问题,提出添加出口压力恢复系数的"有限长"理论求解方法,完善了控制方程组的边界条件,并用"打靶法"对此新边界条件下的口环密封流体控制方程组进行了Matlab编程求解。同时,为使软件脱离Matlab运行环境而独立运行,采用动态链接库的方式将内核计算程序封装,并利用VB实现了界面的设计、数据传输与内核程序的调用。研究结果表明,该程序运行流畅,对口环密封动力学特性计算精度高。
Aiming at the problem of annular seals in multi-stage centrifugal pumps, a theoretical method was proposed, boundary eondtions was improred. The control equations with these new boundary conditions were solved with shooting method using Matlab. Meanwhile, VB combined with dynamic linking library （DLL） was used for the software interface design, data transmission and routine call. The results show that the program run smoothly and predicted the dynamic characteristics of the annular seals accurately.
出处
《机电工程》
CAS
2015年第2期233-236,共4页
Journal of Mechanical & Electrical Engineering
关键词
出口压力恢复系数
打靶法
口环密封
有限长法
动态链接库
混合编程
outlet pressure coefficient
shooting method
annular seals
finite-length method
dynamic linking library （DLL）
admixture programming
