| 舒安平,费祥俊,刘青泉.非均质泥流的输移特性[J].水利学报,2003,34(7): |
| 非均质泥流的输移特性 |
| Characteristics of non-uniform muddy flow transportation |
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| DOI： |
| 中文关键词: 黄土丘陵沟壑区 非均质泥流 输移特性 不淤流速 临界坡降 |
| 英文关键词: loess hilly ravine area non-uniform muddy flow transportation non depositing velocity critical gradient |
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| 中文摘要: |
| 非均质泥流是一种含有大量悬浮细颗粒的高浓度固液两相流体，也是泥石流的一种特例。作者依据水槽输沙试验资料建立的泥流不淤流速公式，通过实测资料检验了其可靠性。在此基础上考虑推移部分影响，推导得出非均质泥流的不淤流速、临界坡降、沟道断面形态指标等重要的输移临界参数计算公式。最后列举计算实例，提出应用计算方法，并据此进一步揭示了非均质泥流的输移特性。 |
| 英文摘要: |
| Non-uniform muddy flow may be defined as one kind of two phase flow with large amount of fine particles and high concentration of sediment.According to the flume tests and basic theovetical analysis, several important formulas describing non uniform muddy flow transportation,such as non depositing velocity,critical gradient and ditch phase factors are deduced.On this basis,the formulas are applied to demonstrate the characteristics of non-uniform muddy flow transportation. |
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