| COMPUTER-AIDED ANALYSIS OF UNSTEADY PARTIALLY FILLED FLOWS IN DRAINAGE SYSTEMS |
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| 作者姓名： | Mao Ze-yu Chen Chang-zhi
Hydraulics Group |
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| 作者单位： | Mao Ze-yu，Chen Chang-zhi
Hydraulics Group，Department of Hydraulic Engineering，Tsinghua University，Beijing
100084，P.R.China |
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| 摘 要： | The partially filled pipeflows encountered in drainage systems belong to a family of unsteady flow problems capable of numerical solution via the method of characteristics.The defining equations in terms of flow depth,velocity and surface wave speed are developed and numerically solved by characteristic-difference method with time-lineinterpolation scheme.Boundary conditions for inflow,outflow,moving hydraulic jump and junctions are developed both experimentally and numerically.Full scale model experiments were carried out and it was consequently clarified that numerical model is capable of predicting flow characteristics in realistic drainage networks.
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COMPUTER-AIDED ANALYSIS OF UNSTEADY PARTIALLY FILLED FLOWS IN DRAINAGE SYSTEMS |
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| Mao Ze-yu,Chen Chang-zhi
Hydraulics Group,.COMPUTER-AIDED ANALYSIS OF UNSTEADY PARTIALLY FILLED FLOWS IN DRAINAGE SYSTEMS[J].Journal of Hydrodynamics,1997(4). |
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| Authors: | Mao Ze-yu Chen Chang-zhi
Hydraulics Group |
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| Affiliation: | Mao Ze-yu,Chen Chang-zhi
Hydraulics Group,Department of Hydraulic Engineering,Tsinghua University,Beijing
100084,P.R.China |
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| Abstract: | The partially filled pipeflows encountered in drainage systems belong to a family of unsteady flow problems capable of numerical solution via the method of characteristics,The defining equations in terms of flow depth, velocity and surface wave speed are developed and numerically solved by characteristic-difference method with time -line interpolation scheme. Boundary conditions for inflow, outflow,moving hydraulic jump and junctions are developed both experimentally and numerically. Full scale model experiments were carried out and it was consequently clarified that numerical model is capable of predicting flow characteristics in realistic drainage networks. |
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| Keywords: | drainage system unsteady flow characteristic difference time-line interpolation |
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