| BED CONDITIONS OF NON-EQUILIBRIUM TRANSPORT OF SUSPENDED SEDIMENT |
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| 作者姓名： | ZHOU Prof Dr. -Ing. Sedimentation Division |
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| 作者单位： | ZHOU，Prof Dr. -Ing. Sedimentation Division，Department of Hydraulic Engineering，Tsinghua University，Beijing J. 100084，China. SPORK，Research Engineer Dip1.-Ing. Institute of Hydraulic Engineering and Water Resources Developmot，Aachen V. University |
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| 基金项目： | the Alexander von Humboldt Stiftung |
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| 摘 要： | I.INTRODUCTIONSuspendedsedimenttransportissaidbeinanycaseaphenomenaofa3Dprocess.Becauseofthelimitationsincomputercapacity,mostoftheexistingmodelstreateditasatlvoorevenonedimensionalproblem.WiththerapidadvancesofcomputersinbothCPUandmemorycapacity,andbecauseoftheavailabilityof3Dmodelsforturbulentflowsimulationsinpracticalapplications,thefully3Dsimulationofsuspendedsedimentbecomesafeasibleandurgenttaskforhydraulicengineers.TheprocessofsuspendedsedimenttransportisdescribedbytheadVection-d…
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BED CONDITIONS OF NON-EQUILIBRIUM TRANSPORT OF SUSPENDED SEDIMENT |
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| ZHOU,Prof Dr. -Ing. Sedimentation Division,.BED CONDITIONS OF NON-EQUILIBRIUM TRANSPORT OF SUSPENDED SEDIMENT[J].International Journal of Sediment Research,1997(3). |
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| Authors: | ZHOU Prof Dr -Ing Sedimentation Division |
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| Institution: | ZHOU,Prof Dr. -Ing. Sedimentation Division,Department of Hydraulic Engineering,Tsinghua University,Beijing J. 100084,China. SPORK,Research Engineer Dip1.-Ing. Institute of Hydraulic Engineering and Water Resources Developmot,Aachen V. University |
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| Abstract: | The bed conditions for suspended sediment transport under non-equilibrum conditions are discussed herein this paper. Based on some experimental data and numerical results computed from different bed conditions, it is reasoned that the Dirichlet condition is correct for the process of erosion while the Neumann condition holds for deposition. For numerical medeling with complex flow problems a combination of both is suggested and preliminary calculations are given. |
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| Keywords: | Suspended sediment Non-equilibrium transport Numerical model Boundary condition Dirichlet condition Neumann condition |
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