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中国沙漠 ›› 2003, Vol. 23 ›› Issue (6): 721-724.

• 实验技术 • 上一篇    

关于风沙流中风速廓线的进一步实验研究

王洪涛, 董治宝, 钱广强, 赵爱国   

  1. 中国科学院 寒区旱区环境与工程研究所沙漠与沙漠化重点实验室, 甘肃 兰州 730000
  • 收稿日期:2002-10-15 修回日期:2002-12-20 出版日期:2003-12-20 发布日期:2003-12-20
  • 作者简介:王洪涛(1975-),男(汉族),山东荣成人,在读博士,主要从事风沙物理与风沙工程研究。E-mail:zbdong@ns.lzb.ac.cn
  • 基金资助:
    国家重点基础研究发展规划(973)"中国北方沙漠化过程及其防治研究"项目资助

Experimental Study on Wind Profile in Sand Flux

WANG Hong-tao, DONG Zhi-bao, QIAN Guang-qiang, ZHAO Ai-guo   

  1. Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2002-10-15 Revised:2002-12-20 Online:2003-12-20 Published:2003-12-20

摘要: 总结与分析了以前学者对风沙流中风速廓线的研究成果,指出了其中的不足之处。并通过实验测出两种较典型自然沙(沙丘沙与河滩冲积沙)所形成稳定状态下风沙流中的风速廓线,提出了新的风速廓线模型。实验结果表明风沙流中的风速廓线用幂函数u=azb拟和最佳,拟合系数均大于0.95。经验证,实验结果可靠。

关键词: 风沙流, 风速廓线, 风洞实验

Abstract: The author has pointed out the shortage in former research results on wind profile of sand flux,and proposed a new model of wind profile through establishing the wind profiles of sand flux that formed by dune sand and alluvial sand in wind tunnel.The results show that the wind velocity profiles obey the law u=azb very well,and all of the coefficients surpass 0.95.It was proved by analysis that the results are believable.

Key words: sand flux, wind profile, experiment, wind tunnel

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