Search Results - "Marchesin, Dan"
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Quantifying protocols for safe school activities
Published in PloS one (14-09-2022)“…By the peak of COVID-19 restrictions on April 8, 2020, up to 1.5 billion students across 188 countries were affected by the suspension of physical attendance…”
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Universality of Riemann solutions in porous media
Published in Boletín de la Sociedad Matemática Mexicana (01-03-2022)“…Universality, a desirable feature in any system. For decades, elusive measurements of three-phase flows have yielded countless permeability models that…”
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Diffusive Effects on Recovery of Light Oil by Medium Temperature Oxidation
Published in Transport in porous media (01-10-2014)“…Volatile oil recovery by means of air injection is studied as a method to improve recovery from low permeable reservoirs. We consider the case in which the oil…”
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Dual-Family Viscous Shock Waves in n Conservation Laws with Application to Multi-Phase Flow in Porous Media
Published in Archive for rational mechanics and analysis (01-09-2006)“…We consider shock waves satisfying the viscous profile criterion in general systems of n conservation laws. We study Si, j dual-family shock waves, which are…”
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Three‐Phase Fractional‐Flow Theory of Foam‐Oil Displacement in Porous Media With Multiple Steady States
Published in Water resources research (01-12-2019)“…Understanding the interplay of foam and nonaqueous phases in porous media is key to improving the design of foam for enhanced oil recovery and remediation of…”
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Solving Riemann problems with a topological tool
Published in Journal of Differential Equations (25-01-2025)“…In previous work, we developed a topological framework for solving Riemann initial-value problems for a system of conservation laws. Its core is a…”
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Steam condensation waves in water-saturated porous rock
Published in Qualitative theory of dynamical systems (01-09-2004)“…We formulate balance laws governing condensation of steam injected into a linear porous medium containing water. Heat losses to the outside are neglected…”
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Riemann solutions without an intermediate constant state for a system of two conservation laws
Published in Journal of Differential Equations (15-02-2014)“…We present a class of systems consisting of two conservation laws in one spatial dimension that share an intriguing property: they admit structurally stable…”
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Mathematics and Numerics for Balance Partial Differential-Algebraic Equations (PDAEs)
Published in Journal of scientific computing (01-08-2020)“…We study systems of partial differential-algebraic equations (PDAEs) of first order. Classical solutions of the theory of hyperbolic partial differential…”
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On a universal structure for immiscible three-phase flow in virgin reservoirs
Published in Computational geosciences (01-02-2016)“…We discuss the solution for commonly used models of the flow resulting from the injection of any proportion of three immiscible fluids such as water, oil, and…”
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COMPOSITIONAL FLOW IN POROUS MEDIA: RIEMANN PROBLEM FOR THREE ALKANES
Published in Quarterly of applied mathematics (01-12-2017)“…We consider the flow in a porous medium of three fluid compounds such as alkanes with different boiling points; the compounds partition into a liquid and a…”
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Effects of water on light oil recovery by air injection
Published in Fuel (Guildford) (01-12-2014)“…•Air injection for light oil recovery is modeled as a medium temperature oxidation.•Water has positive effect on oil recovery when oil has boiling point near…”
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Loss of hyperbolicity changes the number of wave groups in Riemann problems
Published in Boletim da Sociedade Brasileira de Matemática (01-06-2016)“…Themain goal of ourwork is to showthat there exists a class of 2×2 Riemann problems for which the solution comprises a singlewave group for an open set of…”
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The Riemann Solution for the Injection of Steam and Nitrogen in a Porous Medium
Published in Transport in porous media (01-02-2010)“…We solve the model for the flow of nitrogen, vapor, and water in a porous medium, neglecting compressibility, heat conductivity, and capillary effects. Our…”
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The inverse problem of determining the filtration function and permeability reduction in flow of water with particles in porous media
Published in Transport in porous media (01-10-2007)“…Deep bed filtration of particle suspensions in porous media occurs during water injection into oil reservoirs, drilling fluid invasion of reservoir production…”
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The Solution by the Wave Curve Method of Three-Phase Flow in Virgin Reservoirs
Published in Transport in porous media (01-05-2010)“…There are two goals of this study. The first is to provide an introduction to the wave curve method for finding the analytic solution of a porous medium…”
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Vanishing adsorption limit of Riemann problem solutions for the polymer model
Published 03-09-2024“…J. Hyperbolic Differ. Equ., 21(2):299-327, 2024 We examine the vanishing adsorption limit of solutions of Riemann problems for the Glimm-Isaacson model of…”
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Hyperbolicity singularities in Rarefaction Waves
Published in Journal of dynamics and differential equations (01-03-2008)“…For mixed-type systems of conservation laws, rarefaction waves may contain states at the boundary of the elliptic region, where two characteristic speeds…”
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Asymptotic approximation of long-time solution for low-temperature filtration combustion
Published in Computational geosciences (01-06-2012)“…There is a renewed interest in using combustion for the recovery of medium viscosity oil. We consider the combustion process when air is injected into the…”
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