【摘要】 本文从理论推导入手，阐述了戈壁风沙流中沙粒起跃角度、跃移高度和风沙流结构、强度、能量分布状况等特征，指出与流沙地表风沙流的显著差异，并得到风洞实验验证。更多还原

【Abstract】 Based on the theoretical research and experimental results. this paper discusses the sand grain’s initial bouncing angle,drifting sand flux structure,intensity and energy distribution,The comparison study on drifting sand flux over gobi and sandy ground,including both theoretical and experimental results,indicated that the mean angle of sand grain bouncing on gobi surface is larger.The sand amount in drifting sand flux over gobi decreases slower with increasing height.The drifting sand flux intensity over gobi is weaker but the mean movement velocity of sand grains is much faster.Thus,the energy accumulation of drifting sand flux over gobi is stronger.更多还原