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- W3215861005 endingPage "104846" @default.
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- W3215861005 abstract "Since the stream-wise and vertical turbulent fluctuations have an important influence on the movement of sand and dust particles, the accurate quantitative estimation of natural wind fluctuations has an important role in improving the forecast level of wind erosion and dust storm. The high Reynolds number turbulence characteristics of aeolian sand flow and the complexity of sand-laden flows are the main difficulties affecting the accuracy of prediction. In this study, the characteristics of the stream-wise and vertical wind velocity fluctuations in sand-laden flows are studied by analyzing the real-time data of the wind velocity field in the atmospheric surface layer (ASL). Then, a simple empirical model representing the stream-wise and vertical wind velocity fluctuations is proposed. The model not only considers the effects of large-scale and small-scale fluctuations, but also has the advantage of predicting the stream-wise and vertical wind velocity fluctuations at any height. Verification shows the results predicted by the model are in good agreement with the observation results, and the predicted saltation sand flux is closer to the experimental results than that without considering the turbulence effect or the vertical wind velocity fluctuations. Moreover, it is a convenient model for application especially in predicting aeolian sand transport." @default.
- W3215861005 created "2021-12-06" @default.
- W3215861005 creator A5013467617 @default.
- W3215861005 creator A5021306323 @default.
- W3215861005 date "2022-01-01" @default.
- W3215861005 modified "2023-10-14" @default.
- W3215861005 title "Representation model of wind velocity fluctuations and saltation transport in aeolian sand flow" @default.
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- W3215861005 doi "https://doi.org/10.1016/j.jweia.2021.104846" @default.
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