Roll waves evolution in high gradient channels to a non-Newtonian rheology

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:20:34Z
dc.date.available2014-05-27T11:20:34Z
dc.date.created2014-05-27T11:20:34Z
dc.date.issued2002-12-01
dc.identifierProceedings of the Third International Conference on Engineering Computational Technology, p. 97-98.
dc.identifierhttp://hdl.handle.net/11449/67099
dc.identifier10.4203/ccp.76.37
dc.identifier2-s2.0-0036927176
dc.identifier5808118510418914
dc.description.abstractThe criteria for the occurrence of roll wave phenomenon in the supercritical and turbulent Newtonian and non-Newtonian flows from the engineering point of view was analyzed. Imposing a constant discharge at the upstream of the canal and superposing a small perturbation, it was observed that roll waves can be developed more easily for small wave numbers and for high cohesions. Moreover, from the mathematical model used, it was demonstrated that the numerical viscosity was 10 times the physical viscosity.
dc.languageeng
dc.relationProceedings of the Third International Conference on Engineering Computational Technology
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectBingham fluid
dc.subjectRoll wave
dc.subjectShallow water
dc.subjectComputer simulation
dc.subjectMathematical models
dc.subjectPerturbation techniques
dc.subjectReynolds number
dc.subjectViscosity
dc.subjectWaves
dc.subjectGodunov-VanLeer schemes
dc.subjectRoll waves
dc.subjectRheology
dc.titleRoll waves evolution in high gradient channels to a non-Newtonian rheology
dc.typeActas de congresos


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