| Desert and Desertification |
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| A Research Review on Aerodynamic Effects of Shelter Fences |
| LUO Wan-yin1, DONG Zhi-bao1, QIAN Guang-qiang1, MA Li-peng2 |
1.Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
2.Desertification Control Office of Gansu Forestry Bureau, Lanzhou 730000, China |
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Abstract Research on aerodynamic effects of fence protective system is among the important issues to reveal its protective mechanism, and it also is a main part of application study of sand control engineering and blown sand physics. Based on published literatures, we review the half past centurys research progress on the aerodynamic mechanisms of fence protective system, cite some representative examples for each shelter type for discussion, and analyze some typical research conclusion on optimal porosity of sand fences. A deep understanding on aerodynamic effect of shelter fences has achieved and some massive research experience has accumulated, which provide import guiding role and reference for further study. It is thought that the factors influencing shelter fences protective effects are complex. The complexity of air flow patterns around the fence system makes the research of this problem depend mainly on model simulation and theoretical analysis, just as same as some simplification and hypothesis in the past study. Furthermore, the different understanding on the fence shelter process by researchers and their different emphases on the fence shelter make the judge standard of optimal porosity of sand fences to be different, which leads to the optimal porosity of fences reported by various investigators varies in a large ranges, hence cannot be put into directly practice. So it is still be very important to gather more experimental data by using modern high-accuracy measurement technology in further study.
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Received: 08 November 2011
Published: 02 December 2011
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2012, Vol. 32 
