Experimental Research with PIV on Flow Fields through Windbreaks behind Brushwood

JOURNAL OF DESERT RESEARCH ›› 2003, Vol. 23 ›› Issue (5): 600-603.

Experimental Research with PIV on Flow Fields through Windbreaks behind Brushwood

JIN Wen^1,2, WANG Yuan², ZHANG Wei²

1. Xi'an Aerotechnical College, Xi'an 710077, China;
2. The Center for Environment and Modern Agriculture Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received:2002-09-15 Revised:2002-12-02 Online:2003-10-20 Published:2003-10-20

Abstract

Abstract: The Particle Image Velocimetry(PIV) and 2-frames cross-correlation technique were adopted to measure and analyze the characteristics of flow-field in windbreak with porosity of 30%.The experiment was conducted in low-speed wind tunnel,and at the front of windbreak there was brushwood.A series of velocity vector fields,velocity field and vorticity field in 11 H 3 H(H refers to height of windbreak) range have been figured out.The results were compared with that of windbreak without brushwood.Furthermore,the experimental process was numerically simulated by the means of CFD software STAR-CD.Lastly,the shelter effect of windbreak has been discussed.

Key words: 2D-PIV, wind tunnel, windbreaks, brushwood, STAR-CD software

CLC Number:

S727.2

JIN Wen, WANG Yuan, ZHANG Wei. Experimental Research with PIV on Flow Fields through Windbreaks behind Brushwood[J]. JOURNAL OF DESERT RESEARCH, 2003, 23(5): 600-603.

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Experimental Research with PIV on Flow Fields through Windbreaks behind Brushwood

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