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Numerical Study for the Effects of Mean Wind on the Intensity and Evolution of Dust Devils

机译：平均风对沙尘暴强度和演变影响的数值研究

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References(19) Cited-By(6) Supplementary materials(1) Large eddy simulations of dust devil-like vortices under various mean wind conditions were performed with the Weather Research and Forecasting model to investigate the effects of mean wind on the intensity and evolution of dust devils. It is shown that intense vortices are generated for all the mean-wind cases examined. Significant characteristics among the cases with the different mean winds are that vertical vortices are generated most preferably in medium-wind conditions in terms of their number and intensity, and that the lifetime of intense vortices becomes shortened with the increase in mean wind. It is also found that a stability parameter well describes the behavior of vortices in response to mean wind and provides a necessary condition for dust devil occurrence.
机译：参考文献（19）被引用的参考文献（6）补充材料（1）使用“天气研究与预报”模型对各种平均风况下的粉尘魔鬼状涡旋进行了大涡模拟，以研究平均风对强度和演变的影响尘鬼。结果表明，在所有检查的平均风情况下都会产生强烈的涡流。在平均风不同的情况下的显着特征是，就其数量和强度而言，最优选在中风条件下产生垂直涡旋，并且随着平均风的增加，强烈涡旋的寿命会缩短。还发现，稳定性参数很好地描述了旋涡响应平均风的行为，并为发生尘埃魔鬼提供了必要条件。

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