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pro vyhledávání: '"Veronika Schleper"'
For improved operating conditions of a polymer electrolyte membrane (PEM) fuel cell, a sophisticated water management is crucial. Therefore, it is necessary to understand the transport mechanisms of water throughout the cell constituents especially o
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53da8911be465442b3f47c787678111e
Fluid flow through layered materials with different wetting behavior is observed in a wide range of applications in biological, environmental and technical systems. Therefore, it is necessary to understand the occuring transport mechanisms of the flu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98bf43cb5846370824c4a7770c3cf54c
Autor:
Veronika Schleper
Publikováno v:
Applied Numerical Mathematics. 108:256-270
We present a new HLL-type approximate Riemann solver for a compressible two-phase flow model with phase transition and surface forces such as surface tension or electric forces. The solver is obtained following the main ideas of the HLL-approach. Due
A coupling between a 1D compressible-incompressible limit and the 1D p-system in the non smooth case
Autor:
Veronika Schleper, Graziano Guerra
Publikováno v:
Bulletin of the Brazilian Mathematical Society, New Series. 47:381-396
We consider two compressible immiscible fluids in one space dimension and in the isentropic approximation. The first fluid is surrounded and in contact with the second one. As the sound speed of the first fluid diverges to infinity, we prove the rigo
Publikováno v:
International Journal for Numerical Methods in Fluids. 79:615-639
Autor:
Veronika Schleper
Publikováno v:
Mathematical Biosciences and Engineering. 12:393-413
Based on an established mathematical model for the behavior of large crowds, a new model is derived that is able to take into account the statistical variation of individual maximum walking speeds. The same model is shown to be valid also in traffic
Publikováno v:
Applied Mathematical Modelling. 38:3295-3313
In this paper a model comparison approach based on material flow systems is investigated that is divided into a microscopic and a macroscopic model scale. On the microscopic model scale particles are simulated using a model based on Newton dynamics b
Publikováno v:
Mathematical Methods in the Applied Sciences. 38:1001-1004
We correct a technical error in the paper of Gugat, Herty, Schleper, Math. Methods Appl. Sci. 34 (2011), where a framework for controllability of quasi–linear hyperbolic systems has been studied. The application to the case of gas networks is speci
Autor:
Robert Eymard, Veronika Schleper
Publikováno v:
Numerical Methods for Partial Differential Equations. 30:723-748
We study the convergence of a finite volume scheme for a model of miscible two-phase flow in porous media. In this model, one phase can dissolve into the other one. The convergence of the scheme is proved thanks to an estimate on the two pressures, w
Publikováno v:
Computers & Fluids. 75:112-126
We present an exact as well as two new approximate Riemann solvers for phase boundaries in compressible multiphase flow without mass transfer governed by the Euler equations. These Riemann solvers are designed for the simulation of compressible tow-p