沙粒级配对沙波纹形态影响的风洞实验研究
|
|
梁依茹, 吕萍, 曹敏, 马芳, 夏子书, 余军林, 吴婧妍
|
Wind tunnel research into the effect of particle size distribution on sand ripple morphology
|
|
Yiru Liang, Ping Lv, Min Cao, Fang Ma, Zishu Xia, Junlin Yu, Jingyan Wu
|
|
表2 实验结果汇总
|
Table 2 Summary of experimental results
|
|
| 分类 | 组别 | 沙粒级配 | 平均粒径Mz/μm | 分选 系数σ | 风速V1/(m?s-1) | 风速V2/(m?s-1) | 风速V3/(m?s-1) | 风速V4/(m?s-1) |
|---|
| 单粒径 | No.1 | 细沙(<0.25 mm)100% | 101.0 | 1.619 | 9.0 | 10.5 | 12.0 | 15.0 | | No.2 | 中沙(0.25~0.5 mm)100% | 345.1 | 1.376 | \\ | \\ | \\ | \\ | | No.3 | 粗沙(0.5~1.0 mm)100% | 856.5 | 1.349 | \\ | \\ | \\ | \\ | | 等比双粒径 | No.4 | 细沙50%＋粗沙50% | 176.0 | 2.266 | \\ | 10.5 | 12.0 | 15.0 | | No.5 | 细沙50%＋中沙50% | 193.5 | 1.993 | 9.0 | 10.5 | 12.0 | 15.0 | | No.6 | 中沙50%＋粗沙50% | 440.7 | 1.536 | \\ | 10.5 | 12.0 | 15.0 | | 非等比双粒径 | No.7 | 细沙70%＋粗沙30% | 135.3 | 2.000 | \\ | 10.5 | 12.0 | 15.0 | | No.8 | 细沙30%＋粗沙70% | 353.9 | 2.739 | \\ | \\ | \\ | \\ | | 等比三粒径 | No.9 | 细沙33.3%＋中沙33.3%＋粗沙33.3% | 283.2 | 2.247 | 9.0 | 10.5 | 12.0 | 15.0 |
|
|
|