Abstract
Barchan dune is one of the basic forms of eolian landform, it is usually moulded by high-concentration non-saturated wind-sand flow. The formation process of barchan dune begins from “wave-grain duality” of wind-sand movement, and goes through two developmental stages of sand material accumulating (high-concertration saturated wind-sand flow) and dune form moulding (high-concentration non-saturated wind-sand flow), i.e. the processes of dissipative increase and dispersive decrease. The scattered single barchan dunes on non-sandy bed surface have obvious characteristics of mobility and unstability (not including barchan sand hill). The formation of barchan dune in wind tunnel (its dune scale is one order of magnitude larger than sand ripple scale) is helpful to know the formation mechanism of barchan dunes.
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References
Gagnold R.A., 1941. The Physics of Blown Sand and Desert Dune. London: Methuen & Co. Ltd. 172–218.
Liu Zhenxing, 1960. Moyement of dune under the action of wind. Acta Meteorologica Sinica, 31 (1): 84–91. (in Chinese)
Ling Yuquan, Wu Zhen, 1980. Experimention on the dynamic photography of the movement of sand-driving wind. Acta Geographica Sinica, 35(2): 174–181. (in Chinese)
Liu Shaozhong, Yang Shaohua, Ling Yuquan, 1985. Saltation model of sand and its numerical analysis. Chinese Journal of Computational Physics, 2(4): 443–452. (in Chinese)
Ling Yuquan, 1990. Flow field characteristics and their relationship to the intensity of drifting sand activity in the Taklimakan Desert. In: DIE ERDE, Berlin. 6: 113–121.
Li Houqiang, Ai Nanshan, 1992. Turbulent theory for wind-accumulated landform formation. Journal of Desert Research, 12 (3): 1–9. (in Chinese)
Ling Yuquan, 1994. The Distributive heterogeneity of sand-transporting quantity (rate) along horizontal direction. Journal of Experimental Mechanics, 9(4): 352–356. (in Chinese)
Mckee E.D., 1979. A Study of Global Sand Sea. Washington: U. S. Govement Printing Office. 8–19.
Vaughan Cornish, 1897. On the formation of sand dunes. The Geographical Journal, IX(3): 278–309.
Zhu Zhenda, Wu Zhen, Liu Shu et al., 1980. Desert in China. Beijing: Science press. 36–55 (in Chinese)
Zhu Zhenda, 1963. Some problems on sand dune evolution dynamics under windation. Collected Papers of Geography, 5: 58–78. (in Chinese)
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One of the series achievements supported by the National Natural Science Fundation of China (No. 49371009)
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Ling, Y., Wu, Z., Liu, S. et al. Simulating study on barchan dune. Chin. Geograph.Sc. 8, 168–175 (1998). https://doi.org/10.1007/s11769-997-0031-z
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DOI: https://doi.org/10.1007/s11769-997-0031-z