Abstract
The study of trajectory parameters of saltating sand grains is of great importance to forming the kinematic theory of wind-sand current. By establishing the simplified theoretical pattern and probing into the relationship between lift-off angle (α) and landing angle (β), relationship between the ratio of saltation length (L) to maximum height (H) and lift-off angle as well as the angular variation laws of any point on the trajectory, it has been demonstrated that the relations among these parameters are nonlinear. Meanwhile, it has also been proved that the theoretical analysis is basically reliable in accordance with the wind tunnel experiments using high-speed multiflash photography. Generally, the trajectory shapes of saltating sand grains are controlled precisely and the theoretical analysis is closely combined with the experimental results.
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References
Bagnold, R.A.,The Physics of Blown Sand and Desert Dunes, London: Mathuen & Co. Ltd., 1941.
Owen, P.R., Saltation of uniform grains in air.Journal of Fluid Mech., 1964, 20: 225.
Kawamura, R., Study on sand movement by wind,Report of Institute Sci. & Tech., University of Tokyo, 1951, 5: 95.
Nalpanis, F., Hunt, J. C. H., Barrett, C.F., Saltating particles over flat beds,Journal of Fluid Mech., 1993, 251: 661.
Zou, X. Y., Zhu, J. J., Dong, G. R.et al., Distribution function of vertical ejection velocity of saltation grains in air,Chinese Science Bulletin (in Chinese), 1992, 37: 2175.
Liu, X.W., The mathematical-physical analysis on particle movements,Journal of Desert Research (in Chinese), 1993, 13 (2): 1.
Ma, S.W., Study on structure of wind-sand flow,Journal of Desert Reseach (in Chinese), 1988, 8(3): 8.
Zou, X.Y., Liu, Y.Z., Dong, G.R., Tentative calculation of wind-sand current energy,Chinese Science Bulletin, 1994, 39: 1016.
Jensen, J. L., Sorensen, M., Estimation of some aeolian saltation transport parameters: A re-analysis of Williams data,Sedimentology, 1986, 33: 547.
Anderson, R. S., Haft, P.K., Simulation of aeolian saltation,. Science, 1988, 241; 820.
Wu, Z.,Aeolian Geomorphology (in Chinese), Beijing: Science Press, 1987, 59–68.
He, D. L., Gao, Y. G., The study of sand saltation movement with high velocity cinecamera,Journal of Desert Research (in Chineses), 1998, 8(0: 18.
Ling, Y. Q., Wu, Z., Experiment on the dynamic photography of the movement of sand-driving wind,Acta Geographic Sinica (in Chinese), 1980, 35(2): 174.
He, D. L., Liu, D. Y., Force mechanism of lifting off saltating sand particles,Journal of Desert Research (in Chinese), 1989, 9(2): 14.
Zou, X.Y., Dong, G.R., Wang, Z. L., A study on some characteristics of drifting sand flux over Gobi,Journal of Desert Research (in Chinese), 1995, 15(4): 368.
He, D. L., Ling, Y. Q., An important set of equipment for studing sand-carrying wind-wind runnel,Journal of Desert Research (in Chinese), 1981, 1(1): 49.
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Zou, X., Hao, Q., Zhang, C. et al. The trajectory parameters analysis of saltating sand grains driven by wind. Chin.Sci.Bull. 44, 1681–1685 (1999). https://doi.org/10.1007/BF03183489
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DOI: https://doi.org/10.1007/BF03183489