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Convection-diffusion-reaction and transport-flow problems motivated by models of sedimentation: some recent advances

Burger, Raimund ; Diehl, Stefan LU ; Careaga, Julio LU ; Mejías, Camilo and Ruiz Baier, Ricardo (2018) International Congress of Mathematicians Vol. IV: Invited Lectures. p.3489-3514
Abstract
The sedimentation of a suspension is a unit operation widely used in mineral processing, chemical engineering,wastewater treatment, and other industrial applications. Mathematical models that describe these processes and may be employed for simulation, design and control are usually given as nonlinear, time-dependent partial differential equations that in one space dimension include strongly degenerate convection-diffusion-reaction equations with discontinuous coefficients, and in two or more dimensions, coupled flowtransport problems. These models incorporate non-standard
properties that have motivated original research in applied mathematics and numerical analysis. This contribution summarizes recent advances, and presents original... (More)
The sedimentation of a suspension is a unit operation widely used in mineral processing, chemical engineering,wastewater treatment, and other industrial applications. Mathematical models that describe these processes and may be employed for simulation, design and control are usually given as nonlinear, time-dependent partial differential equations that in one space dimension include strongly degenerate convection-diffusion-reaction equations with discontinuous coefficients, and in two or more dimensions, coupled flowtransport problems. These models incorporate non-standard
properties that have motivated original research in applied mathematics and numerical analysis. This contribution summarizes recent advances, and presents original numerical results, for three different topics of research: a novel method of fluxidentification for a scalar conservation law from observation of curved shock trajectories that can be observed in sedimentation in a cone; a new description of continuous sedimentation with reactions including transport and reactions of biological components; and the numerical solution of a multi-dimensional sedimentation-consolidation system by an augmented mixed-primal method, including an a posteriori error estimation. (Less)
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author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of the International Congress of Mathematicians 2018
editor
Sirakov, B. ; de Souza, P. N. and Viana, M.
volume
Vol. IV: Invited Lectures
pages
3489 - 3514
publisher
World Scientific Publishing
conference name
International Congress of Mathematicians
conference location
Rio de Janeiro, Brazil
conference dates
2018-08-01 - 2020-08-09
external identifiers
  • scopus:85085237524
ISBN
978-981-3272-87-3
language
English
LU publication?
yes
id
8a4302bf-90c9-4469-b3df-3c8e27a63655
date added to LUP
2019-06-13 14:00:19
date last changed
2022-03-25 20:16:20
@inproceedings{8a4302bf-90c9-4469-b3df-3c8e27a63655,
  abstract     = {{The sedimentation of a suspension is a unit operation widely used in mineral processing, chemical engineering,wastewater treatment, and other industrial applications. Mathematical models that describe these processes and may be employed for simulation, design and control are usually given as nonlinear, time-dependent partial differential equations that in one space dimension include strongly degenerate convection-diffusion-reaction equations with discontinuous coefficients, and in two or more dimensions, coupled flowtransport problems. These models incorporate non-standard<br/>properties that have motivated original research in applied mathematics and numerical analysis. This contribution summarizes recent advances, and presents original numerical results, for three different topics of research: a novel method of fluxidentification for a scalar conservation law from observation of curved shock trajectories that can be observed in sedimentation in a cone; a new description of continuous sedimentation with reactions including transport and reactions of biological components; and the numerical solution of a multi-dimensional sedimentation-consolidation system by an augmented mixed-primal method, including an a posteriori error estimation.}},
  author       = {{Burger, Raimund and Diehl, Stefan and Careaga, Julio and Mejías, Camilo and Ruiz Baier, Ricardo}},
  booktitle    = {{Proceedings of the International Congress of Mathematicians 2018}},
  editor       = {{Sirakov, B. and de Souza, P. N. and Viana, M.}},
  isbn         = {{978-981-3272-87-3}},
  language     = {{eng}},
  pages        = {{3489--3514}},
  publisher    = {{World Scientific Publishing}},
  title        = {{Convection-diffusion-reaction and transport-flow problems motivated by models of sedimentation: some recent advances}},
  volume       = {{Vol. IV: Invited Lectures}},
  year         = {{2018}},
}