地球科学进展 ›› 2017, Vol. 32 ›› Issue (1): 83 -89. doi: 10.11867/j.issn.1001-8166.2017.01.0083

研究论文 上一篇    下一篇

不同外形粗糙元覆盖沙床面抗风蚀效益的风洞模拟实验
樊瑞静 1, 2, 李生宇 1*, *, 周杰 1, 2, 王海峰 1   
  1. 1.中国科学院新疆生态与地理研究所,新疆 乌鲁木齐 830011;
    2.中国科学院大学,北京 100049
  • 收稿日期:2016-11-27 修回日期:2016-12-27 出版日期:2017-01-10
  • 通讯作者: 李生宇(1975-),男,河北宣化人,副研究员,主要从事风沙地貌与风沙治理研究.E-mail:lishy_hb@163.com
  • 基金资助:
    *国家自然科学基金面上项目“塔克拉玛干沙漠腹地垄间平地沙粒胶结体对沙面蚀积过程的影响及作用机制”(编号:41571011)资助.

Wind Tunnel Experiment of Anti-erosion Efficiency on the Sand Beds Coverd by Different Shapes of Roughness-Elementes

Fan Ruijing 1, 2, Li Shengyu 1, *, Zhou Jie 1, 2, Wang Haifeng 1   

  1. 1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
    2.University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2016-11-27 Revised:2016-12-27 Online:2017-01-10 Published:2017-01-10
  • About author:Fan Ruijing(1990-),female,Anyang City, He’nan Province,Master student. Research areas include sandy landform and desertification control.E-mail:frj66xmn@163.com*Corresponding author:Li Shengyu(1975-),male, Xuanhua City, Hebei Province, Associate Professor. Research areas include sandy landform and desertification control.E-mail:lishy_hb@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China “Impact and mechanism of the hinterland of Taklimakan Desert sand bodies on sand erosion process”(No.41571011).
为了探明沙面粗糙元覆盖物的几何外形对地表风沙活动的抑制作用关系,用球形、三棱锥形、圆柱形、正方体形、饼形和半球形6种外形的粗糙元(自制,保持单颗粒等质量)覆盖(盖度10%)流沙面,分别在净风和挟沙风条件下进行风洞模拟实验。结果表明:①净风条件下,球形、三棱锥形、圆柱形和正方体形粗糙元覆盖床面的风蚀量明显小于饼形和半球形覆盖床面,正方体形、圆柱形、三棱锥形和球形的抗风蚀效率也较饼形和半球形好;②挟沙风条件下,随着风速的增加,球形、三棱锥形、圆柱形覆盖沙面由风积向风蚀转化,风蚀量随风速增大而增大,当风速大于10 m/s,床面均表现为强烈侵蚀,其中饼形和半球形阻沙功能较弱,两者风蚀率最大;③无论是净风,还是挟沙风条件,床面风蚀量均受粗糙元的方向比率、高度和间距等因素的影响,相同覆盖度下,细高、有明显边界的粗糙元防护效果好于粗矮的粗糙元。
In order to study the relationship between the shapes of roughness-elements on sand beds and the surface sand activity inhibition, we chose six shapes of elements including spherical, triangular pyramid shape, cylindrical, square shape, pie and hemispherical shape by hand with equal quality kept. We carried out the experiment with the 10% coverage on the wind tunnel. The results revealed that ① the erosion and anti-erosion rate of spherical, triangular pyramid shape, cylindrical and square roughness-elements were better than the pie and hemispherical on the non-sand wind; ② On the sand-driving wind conditions, spherical, triangular, cylindrical covered beds became erosion to erosion-deposition with the increase of wind speed, and the erosion rate was increased with the wind speed. When the wind speed was more than 10 m/s, the sand-beds showed a strong erosion, and the pie and hemispherical elements’ resistance function were weakest; ③ No matter the non-sand wind or sand wind, the erosion rate was affected by the elements’ aspect ratio, height and spacing. The slender elements with a prominent upper edge were clearly superior to broad rounded elements.

中图分类号: 

[1] Zou Xueyong,Zhang Chunlai,Cheng Hong, et al .Classification and representation of fctors affectiong soil wind erosion in a model[J]. Advances in Earth Science ,2014,29(8):875-889.
.地球科学进展, 2014, 29(8):875-889.]
[2] Wang Xunming,Lang Lili,Hua Ting, et al . Gravelcover of gobi desert and its significance for wind erosion[J]. Journal of Desert Research ,2013,33(2):313-319.
.中国沙漠,2013,33(2):313-319.]
[3] Zhang Kecun,Zhang Weimin,Qu Jianjun, et al .Study on dynamic properities of gobi surface with different gravel coverage[J]. Arid Zone Research ,2012,29(6):1 077-1 082.
.干旱区研究,2012,29(6):1 077-1 082.]
[4] Zhang Weimin,Tan Lihai,Zhang Kecun, et al . Field wind tunnel simulation of the process of aeolian erosion and deposition of gravel beds with different coverage[J]. Scientia Geographica Sinica , 2012,32(11):1 370-1 376.
.地理科学,2012,32(11):1 370-1 376.]
[5] Liu Lianyou,Liu Yuzhang.Effect ofgravel mulch restraining soil deflation by wind tunnel simulation[J]. Journal of Desert Research , 1999,19(1):60-62.
.中国沙漠,1999,19(1):60-62.]
[6] Zhang W,Wang T,Wang W, et al . The gobi sand stream and its control over the top surface of the Mogao Grottoes,China[J]. Bulletin of Engineering Geology & the Environment ,2004,63(3):261-269.
[7] Dong Zhibao,Qu Jianjun,Liu Xiaoping, et al .The research of resistance coefficience on gobi surface[J]. Science in China ( Series D ),2001,31(11):953-958.
.中国科学:D辑,2001,31(11):953-958.]
[8] Lettau H. Note on aerodynamic roughness-parameter estimation on the basis of roughness-element description[J]. Journal of Applied Meteorlogy ,1969,8(5):828-832.
[9] Wooding R A,Bradley E F,Marshall J K. Drag due to regular arrays of roughness elements of varying geometry[J]. Boundary-Layer Meteorology ,1973,5(3):285-308.
[10] Gillette D A,Stockton P H. The effect of nonerodible particles on wind erosion of erodible surfaces[J]. Journal of Geophysical Research Atmospheres ,1989,94(D10):12 885-12 893.
[11] Raupach M R,Gillette D A,Leys J F. The effect of roughness elements on wind erosion threshold[J]. Journal of Geophysical Research Atmospheres ,1993,98(D2):3 023-3 029.
[12] Mei Fanmin,Jiang Shanshan,Wang Tao.The inflected feature of wind profiles over several roughness beds and its implications[J]. Journal of Desert Research , 2010,30(2):217-227.
.中国沙漠,2010,30(2):217-227.]
[13] Mei Fanmin,Jiang Chanwen,Jiang Shanshan, et al .The integrated effects of roughness elements’geometric parameters on aerodynamic roughnes length[J]. Journal of Desert Research ,2012,2(6):1 534-1 541.
.中国沙漠,2012,2(6):1 534-1 541.]
[14] Wang Xiao,Zhang Weimin.A numerical simulation of effect of windflow and gravels’geometric parmeters on aerodynamic roghness length[J]. Journal of Desert Research ,2014,34(4):943-948.
.中国沙漠,2014,34(4):943-948.]
[15] Marusic I, Mckeon B J, Monkewitz P A, et al . Wall-bounded turbulent flows at high Reynolds numbers: Recent advances and key issues[J]. Physics of Fluids , 2010, 22(6):843-848.
[16] Smits A J, Mckeon B J, Marusic I. High-reynolds number wall turbulence[J]. Fluid Mechanics , 2011, 43(43):353-375.
[17] Wang Ping,Zheng Xiaojing.Development of unsteady windblown sand transport[J]. Advances in Earth Science , 2014, 29(7):786-794.
.地球科学进展, 2014, 29(7):786-794.]
[18] Qu Jianjun,Wang Tao,Dong Zhibao, et al .The reviewed of dust storm wind tunnel tests[J]. Journal of Arid Land Resources and Enviroment ,2004, (Suppl.1):109-115.
.干旱区资源与环境,2004, (增刊1):109-115.]
[19] Xue Xian,Zhang Weimin,Wang Tao, et al .Wind tunnel experiments on the effects of gravel protection and problems of field surveys[J]. Acta Geographica Sinica , 2000,55(3):375-383.
.地理学报,2000,55(3):375-383.]
[20] Marshall J K. Drag measurements in roughness arrays of varying density and distribution[J]. Agricultural Meteorology ,1971,8(71):269-292.
[21] Zhou Zhe.Investigation of the Particle Transport in Developing Flat-Plate Boundary Layers with A Hemispherical Roughness Element by Direct Numerical Simulation[D].Hangzhou:Zhejiang University,2010.
.杭州:浙江大学, 2010.]
[22] Raupach M R,Thom A S, Edwards I. A wind-tunnel study of turbulent flow close to regularly arrayed rough surfaces[J]. Boundary-Layer Meteorology ,1980,18(4):373-397.
[23] Tan Lihai,Zhang Weimin,An Zhishan, et al .Response of wind velocity gradient at boundray layer to gravel coveage[J]. Journal of Desert Research , 2012,32(6):1 522-1 527.
.中国沙漠,2012,32(6):1 522-1 527.]
[24] Ash J E,Wasson R J. Vegetation and mobility in the Australian desert dunefield[J]. Zeitschrift Für Geomorphologie , 1983,45:7-25.
[25] Bachavov A P. A description of devices of wind erosion[J]. World Desert Research ,1992,3:40-43.
[1] 车雪华, 罗万银, 邵梅, 王中原. 青海共和盆地不同发育阶段风蚀坑表面气流场与形态反馈研究[J]. 地球科学进展, 2021, 36(1): 95-109.
[2] 张绍云,董玉祥. 海岸沙地风蚀坑形态—动力学研究进展[J]. 地球科学进展, 2019, 34(10): 1028-1037.
[3] 董玉祥,张青年,黄德全. 海岸风蚀地貌研究进展与展望[J]. 地球科学进展, 2019, 34(1): 1-10.
[4] 张春来, 宋长青, 王振亭, 邹学勇, 王雪松. 土壤风蚀过程研究回顾与展望[J]. 地球科学进展, 2018, 33(1): 27-41.
[5] 邹学勇, 张春来, 程宏, 亢力强, 吴晓旭, 常春平, 王周龙, 张峰, 李继峰, 刘辰琛, 刘博, 田金鹭. 土壤风蚀模型中的影响因子分类与表达[J]. 地球科学进展, 2014, 29(8): 875-889.
[6] 岳高伟,贾慧娜. 沙尘暴过程中颗粒对化学结皮的冲蚀破坏[J]. 地球科学进展, 2012, 27(7): 800-805.
[7] 牛清河,屈建军,李孝泽,董光荣,张克存,韩庆杰. 雅丹地貌研究评述与展望[J]. 地球科学进展, 2011, 26(5): 516-527.
[8] 戴海伦, 金复鑫, 张科利. 国内外风蚀监测方法回顾与评述[J]. 地球科学进展, 2011, 26(4): 401-408.
[9] 朱好,张宏升. 沙尘天气过程临界起沙因子的研究进展[J]. 地球科学进展, 2011, 26(1): 30-38.
[10] 梅凡民,王涛,张小曳,陈敏. 有关粉尘释放模型的应力分配模式存在问题的讨论[J]. 地球科学进展, 2006, 21(4): 424-429.
[11] 陈渭南,董光荣,董治宝. 中国北方土壤风蚀问题研究的进展与趋势[J]. 地球科学进展, 1994, 9(5): 6-12.
阅读次数
全文


摘要