风沙流中风速脉动对输沙量的影响

摘要/Abstract

摘要： 通过对不同工程措施下风沙流中风速脉动特征与输沙量波动研究发现：不同孔隙度栅栏中各高度层瞬时风速的波动性具有很好的相关性，而且相邻高度之间的相关性非常显著。在不同风速下，典型工程措施中同一高度层输沙量具有相对应的变化特征；瞬时风速的波动性主要与其所在高度层沙粒的运动状态和工程效益有关。

关键词: 风沙流, 风速脉动, 输沙量

Abstract: Study on relation of wind speed fluctuation with sand transport rate was conducted in wind tunnel under condition of different engineering measures. The fluctuating characteristics of instantaneous wind speed with time are well correlative between different heights in sand barriers, especially between neighboring heights. As the space between different heights increases, the synchronism of instantaneous wind speed fluctuation presents a decreasing degree. The fluctuating amplitude of instantaneous wind speed is closely related to both the character of underlying surface and the motion state of sand grain and sand transport.

Key words: sand flow, wind speed fluctuation, sand transport

中图分类号:

X169

张克存;屈建军;董治宝;俎瑞平;方海燕. 风沙流中风速脉动对输沙量的影响[J]. 中国沙漠, 2006, 26(3): 336-340.

ZHANG Ke-cun;QU Jian-jun;DONG Zhi-bao;ZU Rui-ping;FANG Hai-yan. Effect of Wind Speed Fluctuation on Sand Transport Rate[J]. JOURNAL OF DESERT RESEARCH, 2006, 26(3): 336-340.

参考文献

[1]Skidmore E L. Soil erosion by wind[A]. In: El-Baz F, Hassan M H A, (Eds). Physics of Desertification[C]. Dordrecht: Martinus Nijhoff Publishers, 1986.261-273.
[2]吴正等著. 风沙地貌与治沙工程学[M]. 北京：科学出版社，2003. 21,61.
[3]李振山，倪晋仁. 挟沙气流输沙率研究[J]. 泥沙研究，2001, (1): 1-10.
[4]倪晋仁，李振山. 挟沙气流中输沙量垂线分布的实验研究[J]. 泥沙研究，2002, (1): 30-35.
[5]李振山. 地形起伏对气流速度影响的风洞实验研究[J]. 水土保持研究，1999, 6(4): 75-79.
[6]贺大良. 输沙量与风速关系的几个问题[J]. 中国沙漠，1993，13(2): 14-18.
[7]杨具瑞，方铎，毕兹芬，等. 非均匀风沙起动规律研究[J]. 中国沙漠，2004，24(2): 248-251.
[8]慕青松，苗天德，马崇武. 对均匀沙流体起动风速研究[J]. 兰州大学学报（自然科学版），2004， 40(1)：21-25.
[9]屈建军，凌裕泉，俎瑞平，等. 半隐蔽格状沙障综合防护效益观测研究[J]. 中国沙漠，2005, 25(3): 329-335.
[10]汪万福，王涛，樊锦诗，等. 敦煌莫高窟顶尼龙网栅栏防护效应研究[J]. 中国沙漠，2005, 25(5): 640-648.
[11]张克存，屈建军，俎瑞平，等. 不同结构的尼龙网和塑料网防沙效应研究[J]. 中国沙漠，2005，25(4): 483-487.
[12]包慧娟，李振山. 风沙流中风速纵向脉动的实验研究[J]. 中国沙漠，2004, 24(2):244-247.
[13]Butterfield G R. Grain transport rates in steady and unsteady turbulent airflow [J]. Acta Mechanica, 1991, (Suppl.1): 97-122.
[14]Butterfield G R. Transitional behavior of saltation: wind tunnel observation of unsteady wind[J]. Journal of Arid Environments, 1998, 39: 377-394.
[15]Butterfield R G. Application of thermal anemometry and high-frequency measurement of mass flux to aeolian sediment transport research [J]. Geomorphology, 1999, 29: 31-58.
[16]Rasussen K. Some aspects of flow over coastal dunes[A]. In: Gimmingham C H, Ritchie W, Willetts B B, et al (Eds). Symposium: Coastal Sand Dunes[C]. Royal Society of Edinburgh Proceedings, 1989. 96.
[17]Basil F, Nielsan K F. Movement of soil particles in saltation[J]. Canadian Journal of Soil Science, 1962, 42: 81-86.
[18]Lyles L, Krauss R K. Threshold velocities and initial particle motion as influenced by air turbulence [J]. American Society of Agricultural Engineering, Transaction, 1971, 20:880-884.
[19]李振山，倪晋仁. 风沙流中风速脉动的实验测量[J]. 应用基础与工程科学学报，2003, 11(4): 352-360.