%0 Journal Article
%T An algorithm in piv measurement of wind-sand two-phase flow<br>风沙两相流PIV测量算法研究
%A Wang Dawei
%A Wang Yuan
%A Yang Bin
%A <br>王大伟
%A 王元
%A 杨斌
%J 力学学报
%D 2006
%I 
%X On the basis of characteristics of wind-sand two-phase flow CCD images, an auto generated Digital Mask algorithm based on K-mean value algorithm of pattern recognition's dynamic clustering method is proposed to solve the wind-sand two-phase flow. This algorithm simplifies the manual setting operation of parameters in the process of the traditional generation of Digital Mask, reduces the man-made error, and provides a safe and fast method to process two-phase PIV images in batch. Finally,this algorithm is applied to real measurements of wind-sand two-phase flow.After computation, the flow fields of the phase of the wind, the phase of the sand and the two-phase of the wind-sand of different flow types are obtained.
%K wind-sand two-phase flow
%K PIV
%K Digital Mask
%K pattern recognition
%K K-mean value algorithm<br>风沙两相流
%K PIV
%K Digital
%K Mask
%K 模式识别
%K K-均值算法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=AE871D297B752D98&yid=37904DC365DD7266&vid=16D8618C6164A3ED&iid=38B194292C032A66&sid=119B6C0AA09DE6B9&eid=51C74DF6A16DA45B&journal_id=0459-1879&journal_name=力学学报&referenced_num=6&reference_num=9