| 练继建,赵子丹.波浪作用下软泥床面的粘性泥沙悬扬[J].水利学报,1998,29(8):0047-0052 |
| 波浪作用下软泥床面的粘性泥沙悬扬 |
| Cohesive sediment entrainment from soft muddy bed by waves |
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| DOI： |
| 中文关键词: 粘性泥沙悬扬 软泥床面 剪切力 波浪 |
| 英文关键词: cohesive sediment entrainment shear stress soft muddy bed waves |
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| 中文摘要: |
| 本文考虑波浪与软泥床面相互作用，建立了计算软泥床面上波浪剪应力的理论模型.计算结果表明，床面运动对波浪床面剪应力的影响很大.对波浪作用下粘性泥沙悬扬进行了实验研究，得到了不同密度泥床粘性泥沙悬扬的临界剪切力与泥沙流变参数的关系，并与水流作用下粘性泥沙悬扬的结果进行了比较。 |
| 英文摘要: |
| Considering the interaction between waves and soft muddy bed, a model for the calculation of wave shear stress on soft is presented in this paper. On the basis of the calculated results for wave shear stress, the critical shear stress for the initial entrainment of cohesive sediment on muddy bed with different densities by waves is investigated by flume tests. A formula of the critical shear stress for the initial entrainment of cohesive sediment on various density muddy beds by waves is obtained and compared with the formula of the critical shear stress of cohesive sediment by currents. |
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