沙丘迎风坡加速因子的数值模拟
Simulation on speed-up factor of the windward of dune
野外实验表明，沙丘迎风坡的气流加速量主要与1）沙丘高度，2）沙丘迎风坡坡度以及3）迎风坡前来流风速有关。本工作通过数值模拟风场对孤立横向沙丘的作用，讨论了沙丘的高度、沙丘迎风坡坡度以及沙丘迎风坡坡前来流风速对加速因子的影响，并由加速因子与上述因素的相关性拟合出加速因子的公式。
he field experiments showed that windward flow amplification near the surface of a dune depends on (1) the height of the dune, (2) the angle of the stoss slope and (3) the wind speed upwind of the dune. In this paper, we simulated the wind flow over an isolated and transverse dune, and discussed the influences of the height of the dune, the angle of the stoss slope and the wind speed on the speed-up factor. Based on the simulation and theoretical investigations, a formulary of analytical approximations for the speed-up factor is presented.
郑晓静、江丽娟、薄天利
大气科学（气象学）
沙丘气流加速加速因子拟合公式
sand duneflow amplificationspeed-up factorformulary of analytical approximations
郑晓静,江丽娟,薄天利.沙丘迎风坡加速因子的数值模拟[EB/OL].(2009-03-14)[2025-08-03].http://www.paper.edu.cn/releasepaper/content/200903-491.点此复制
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