dc.date.accessioned | 2013-03-12T08:19:15Z | |
dc.date.available | 2013-03-12T08:19:15Z | |
dc.date.issued | 2003 | en_US |
dc.date.submitted | 2009-12-11 | en_US |
dc.identifier.uri | http://hdl.handle.net/10852/10638 | |
dc.description.abstract | We consider a scalar conservation law modeling the settling of particles in an ideal clarifier-thickener unit. The conservation law has a nonconvex flux which is spatially dependent on two discontinuous parameters. We suggest to use a Kruzkov-type notion of entropy solution for this conservation law and prove iniqueness ($L_1$ stability) of the entropy solution in the $BV_t$ class (functions $W(x,t)$ with $\partial_tW$ being a finite measure). The existence of a $BV_t$ entropy solution is established by proving convergence of a simple upwind finite difference scheme (of the Engquist-Osher type). A few numerical examples are also presented. | eng |
dc.language.iso | eng | en_US |
dc.publisher | Matematisk Institutt, Universitetet i Oslo | |
dc.relation.ispartof | Preprint series. Pure mathematics http://urn.nb.no/URN:NBN:no-8076 | en_US |
dc.relation.uri | http://urn.nb.no/URN:NBN:no-8076 | |
dc.rights | © The Author(s) (2003). This material is protected by copyright law. Without explicit authorisation, reproduction is only allowed in so far as it is permitted by law or by agreement with a collecting society. | |
dc.title | WELL-POSEDNESS IN BVt AND CONVERGENCE OF A DIFFERENCE SCHEME FOR CONTINUOUS SEDIMENTATION IN IDEAL CLARIFIER-THICKENER UNITS | en_US |
dc.type | Research report | en_US |
dc.date.updated | 2009-12-11 | en_US |
dc.rights.holder | Copyright 2003 The Author(s) | |
dc.creator.author | Bürger, Raimund | en_US |
dc.creator.author | Karlsen, Kenneth H. | en_US |
dc.creator.author | Risebro, Nils Henrik | en_US |
dc.creator.author | Towers, John D. | en_US |
dc.subject.nsi | VDP::410 | en_US |
dc.identifier.urn | URN:NBN:no-23720 | en_US |
dc.type.document | Forskningsrapport | en_US |
dc.identifier.duo | 97821 | en_US |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/10638/1/pm07-03.pdf | |