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- W2374919103 abstract "The dynamic characteristics of natural wind near the earth surface in forest environment is the foundation of several relevant researches such as forest environmental wind field, forest fire prevention theory and room conditioning's blow mode. In this paper, the dynamic characteristics of natural wind near the earth surface were studied by means of signal sample analysis of two dimensional wind speed in the Experimental Forestry Center of Beijing Forestry University. The results show that: the average speed and speed variance in X direction (main direction) are quite large, but average turbulence intensity of wind speed in X direction is lower than that in Y direction (side direction); the direction variation of natural wind is obvious, when average speed is lower, the standard deviation of wind direction angle is large, nevertheless, as average speed increases, the standard deviation of wind direction angle decreases; the speed distribution of wind speed in X and Y directions deviates from normal distribution in right, and the skewness index and kurtosis index of speed distribution in Y direction are larger than those in X direction; there is highly randomicity in two dimensional wind speed signal. Furthermore, wind speed signal in X direction is less correlated with that in Y direction." @default.
- W2374919103 created "2016-06-24" @default.
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- W2374919103 date "2004-01-01" @default.
- W2374919103 modified "2023-09-25" @default.
- W2374919103 title "Analysis on dynamic characteristics of natural wind near earth surface in forest environment." @default.
- W2374919103 hasPublicationYear "2004" @default.
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