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dc.contributor.authorFerreira, R. L.pt_BR
dc.contributor.authorAmaral, S.pt_BR
dc.date.accessioned2011-11-30T16:24:30Zpt_BR
dc.date.accessioned2014-10-10T16:15:17Zpt_BR
dc.date.accessioned2017-04-12T09:21:24Z-
dc.date.available2011-11-30T16:24:30Zpt_BR
dc.date.available2014-10-10T16:15:17Zpt_BR
dc.date.available2017-04-12T09:21:24Z-
dc.date.issued2006-09pt_BR
dc.identifier.urihttps://repositorio.lnec.pt/jspui/handle/123456789/1002791-
dc.description.abstractGeomorphic dam-break flows have been shown to feature discontinuities other than the downstream progressing wavefront. Of particular importance is the jump that forms, for some combinations of initial conditions and bed materials, near the location of the dam. No attempts to characterize this jumpwere undertaken until recently. In this text, the discontinuities occurring in geomorphic dam-break flows are investigated in the framework of a shallow-flow theory. The main objective is to understand whether they are susceptible to be described by Riemann waves or if they are flow features aroused by momentum sources, namely friction, or by phenomena beyond the shallow-flow theory. For that purpose, experimental results are presented and compared with a theoretical solution of the governing equations given initial discontinuous data. The classification of the discontinuities follows the comparison between the observed and calculated flow features for the same initial conditions. No attempt is made to address the phenomenological aspects of the formation and evolution of the discontinuities. Nevertheless, the observed behavior is discussed in conjunction with the weak solution of the governing equations.pt_BR
dc.rightsopenAccesspt_BR
dc.titleDiscontinuities in geomorphic dam-break flowspt_BR
dc.typeconferenceObjectpt_BR
dc.identifier.seminarioRiver Flow 2006 – Conferência internacional em hidráulica fluvialpt_BR
dc.identifier.localLisboapt_BR
dc.description.sectorDHA/NREpt_BR
dc.description.year2006pt_BR
dc.description.data04 a 06 de Setembro de 2006pt_BR
Appears in Collections:DHA/NRE - Comunicações a congressos e artigos de revista

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