摘要
介绍了流动可视法的原理和方法.目前新出现的流场测量与显示技术,为研究三维瞬时非定常流场提供了可能性,其中的一些方法在旋转机械流场测量分析中的应用,为进一步研究水力机械内流场的流谱,提取速度与压力流场信息,发现新的流动现象等提供有益的启示.随着各种高新技术的发展,流动可视化技术将成为一门很有发展潜力的现代实用技术.
Modern flow visualization technique is a kind of forward courses crossing technique. Success in flow field expeimenal study is decided by light condition , seed particle, drawning, processing and analysing means of information to flow field. At present, the techniques LIF ,CT ,PIV ,DPIV etc. provide possibility for studying instantaneous spatial unsteady flow fields. Especially, LIF ,PIV ,DPIV methods are applied to the flow fields of rotating machinery supplies good enlightenment for studying further hydromachinery flow fields. Along with all kinds of new technical development , flow visualization technique will become a sort of potential modern practical technique.
出处
《华北水利水电学院学报》
2003年第4期31-34,72,共5页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
流动可视化
示踪粒子
激光测速
旋转机械
图像处理
flow visualization
seed particle
laser velocimetry
rotating machinery
image processing
