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INSTABILITY OF NON-NEWTONIAN OPEN CHANNEL FLOW[J]. Chinese Journal of Theoretical and Applied Mechanics, 1990, 22(3): 266-275. DOI: 10.6052/0459-1879-1990-3-1995-944
Citation: INSTABILITY OF NON-NEWTONIAN OPEN CHANNEL FLOW[J]. Chinese Journal of Theoretical and Applied Mechanics, 1990, 22(3): 266-275. DOI: 10.6052/0459-1879-1990-3-1995-944
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INSTABILITY OF NON-NEWTONIAN OPEN CHANNEL FLOW

  • 国际泥沙研究培训中心

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  • , 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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