| 2010年烟台沙漠学术研讨会论文选 |
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| A Segmentation Method of PIV Images of Wind-sand Two-phase Flow based on MATLAB Platform |
| JIANG Chan-wen, MEI Fan-min, WANG Xiao-yan |
| School of Chemical and Environmental Engineering, Xi’an Polytechnic University, Xi’an 710048, China |
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Abstract In order to deeply understand the mechanical mechanism of sand particles movement, it is fundamental to acquire both instantaneous sand particles velocity and instantaneous airflow velocity simultaneously during wind tunnel test. This paper developed a segmentation method of two-phase flow PIV images based on MATLAB platform. The fundamental principle of this method lies in distinguishing sand particles from airflow tracing particles by particles' sizes of two-phase flow PIV images. This method can clearly segment the two-phase flow PIV images, and also can distinguish particles of different sizes from PIV images. The method will be a effective tool for retrieving simultaneously wind-sand two-phase flow fields.
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Received: 30 August 2010
Published: 20 March 2011
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2011, Vol. 31 
