| 非牛顿体不稳定流的研究 |
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| 引用本文： | 王兆印,林秉南,张新玉.非牛顿体不稳定流的研究[J].力学学报,1990,22(3):266-275. |
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| 作者姓名： | 王兆印 林秉南 张新玉 |
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| 作者单位： | 国际泥沙研究培训中心 |
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| 摘 要： | 本文通过试验和分析研究了非牛顿体明渠不稳定流的机理,阐明了不稳定流的产生和发展是由于流体具有屈服应力,利用这一机理,解释了高含沙洪水的波动和“浆河”现象、冰川流和泥流的不稳定流和泥石流的阵流现象。
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| 关 键 词： | 非牛顿 不稳定性 流体 浆河 |
INSTABILITY OF NON-NEWTONIAN OPEN CHANNEL FLOW |
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| Wang Zhaoyin,Lin Bingnan,Zhang Xinyu.INSTABILITY OF NON-NEWTONIAN OPEN CHANNEL FLOW[J].chinese journal of theoretical and applied mechanics,1990,22(3):266-275. |
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| Authors: | Wang Zhaoyin Lin Bingnan Zhang Xinyu |
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| Institution: | Institute of Water Conservancy and Hydroelectric Power Research |
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| Abstract: | , The mechanism of instability of non-Newtonian flow in an. open channel is studied by means of experiment and theoretical analysis. It is proved that the instability of non-Newtonian flow results essentially from the Bingham yield stress τB of the fluid. The larger the yield stress, is and the smaller the rigidity coefficient η is, the more unstable the non-New-t.onian flow will be. Based on the theory, the phenomena of "river clogging" in hypercon-centrated flow in the Yellow River and its tributories, th... |
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| Keywords: | Non-Newtonian flow instability bingham yield- stress river clogging |
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