新月形沙丘表面流场特征
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罗霖炎, 高鑫, 赵永成
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The surface flow pattern characteristics of barchan dunes
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Linyan Luo, Xin Gao, Yongcheng Zhao
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表2 CFD模拟实验参数
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Table 2 Parameters of the CFD simulation experiments
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不同沙丘高度 |
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高度/m | 迎风坡坡度/(°) | 迎风坡长度/m | 背风坡坡度/(°) | 背风坡长度/m | 翼长/m | 沙丘宽度/m | 摩阻风速/(m·s-1) | 1.20 | 15.00 | 6.81 | 34.00 | 1.78 | 4.80 | 12.00 | 0.50 | 1.60 | 15.00 | 9.07 | 34.00 | 2.37 | 6.40 | 16.00 | 0.50 | 2.00 | 15.00 | 11.34 | 34.00 | 2.97 | 8.00 | 20.00 | 0.50 | 2.40 | 15.00 | 13.61 | 34.00 | 3.56 | 9.60 | 24.00 | 0.50 | 2.80 | 15.00 | 15.88 | 34.00 | 4.15 | 11.20 | 28.00 | 0.50 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 3.60 | 15.00 | 20.42 | 34.00 | 5.34 | 14.40 | 36.00 | 0.50 | 4.00 | 15.00 | 22.69 | 34.00 | 5.93 | 16.00 | 40.00 | 0.50 | 4.40 | 15.00 | 24.95 | 34.00 | 6.52 | 17.60 | 44.00 | 0.50 | 4.80 | 15.00 | 27.22 | 34.00 | 7.12 | 19.20 | 48.00 | 0.50 | 不同迎风坡坡度 | 高度/m | 迎风坡坡度/(°) | 迎风坡长度/m | 背风坡坡度/(°) | 背风坡长度/m | 翼长/m | 沙丘宽度/m | 摩阻风速/(m·s-1) | 3.20 | 8.00 | 22.77 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 3.20 | 10.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 3.20 | 12.00 | 15.05 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 3.20 | 14.00 | 12.83 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 3.20 | 16.00 | 11.16 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 3.20 | 18.00 | 9.85 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 3.20 | 20.00 | 8.79 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 不同来流风速 | 高度/m | 迎风坡坡度/(°) | 迎风坡长度/m | 背风坡坡度/(°) | 背风坡长度/m | 翼长/m | 沙丘宽度/m | 摩阻风速/(m·s-1) | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.30 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.35 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.40 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.45 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.50 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.60 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.70 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.80 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 0.90 | 3.20 | 15.00 | 18.15 | 34.00 | 4.74 | 12.80 | 32.00 | 1.00 |
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