摘要
研究提高对层状两相分层流分界跟踪能力问题时,为克服目前流行的图像重建算法在反演两相流常见流型,其中分界面清晰的层状两相流的不足,通过采用不同措施对有限元电阻率进行赋值,同时结合局部细化有限元的方法,提出了变步长迭代图像重建算法。并以新算法为基础,设计了层状两相流在线监控系统中同时进行仿真。仿真实验表明,系统不仅可有效提高对层状两相流界面的跟踪能力,且抗噪声干扰能力强,适合在线监控。
In order to overcome the shortcoming of the popular image reconstruction algorithms used in inverting type - stratified two phase flow, a variable step - size algorithm was proposed by using different methods to evaluate the value of finite element and partly refined finite element. And an on - line monitoring system for stratified two phase flow was designed based on the new proposed algorithm. The simulation and experimental results show that this system can improve the tracking ability of stratified two phase flow efficiently, has a strong resistance to noise and is best for on -line monitoring.
出处
《计算机仿真》
CSCD
北大核心
2010年第5期209-212,共4页
Computer Simulation
基金
江苏省高校自然科学研究项目(09KJD120005)
徐州工程学院校科研基金(XKY2007233)
中国石油大学211建设重点课题(211SZ-05)
关键词
图像重建算法
层状流
变步长
监控
Image reconstruction algorithms
Stratified two phase flow
Variable step- size
Monitoring
