Results 21 to 30 of about 190 (54)

Existence, a priori and a posteriori error estimates for a nonlinear three-field problem arising from Oldroyd-B viscoelastic flows [PDF]

open access: yes, 2001
In this paper, a nonlinear problem corresponding to a simplified Oldroyd-B model without convective terms is considered. Assuming the domain to be a convex polygon, existence of a solution is proved for small relaxation times.
Picasso, Marco, Rappaz, Jacques
core   +1 more source

A generalization of the Lomnitz logarithmic creep law via Hadamard fractional calculus

open access: yes, 2017
We present a new approach based on linear integro-differential operators with logarithmic kernel related to the Hadamard fractional calculus in order to generalize, by a parameter $\nu \in (0,1]$, the logarithmic creep law known in rheology as Lomnitz ...
Garra, Roberto   +2 more
core   +1 more source

Invariant Measures for Dissipative Dynamical Systems: Abstract Results and Applications [PDF]

open access: yes, 2012
In this work we study certain invariant measures that can be associated to the time averaged observation of a broad class of dissipative semigroups via the notion of a generalized Banach limit.
Chekroun, Micka ël D.   +1 more
core   +1 more source

On Maxwell fluid with relaxation time and viscosity depending on the pressure

open access: yes, 2010
We study a variant of the well known Maxwell model for viscoelastic fluids, namely we consider the Maxwell fluid with viscosity and relaxation time depending on the pressure.
Amos   +27 more
core   +1 more source

Mathematical existence results for the Doi-Edwards polymer model [PDF]

open access: yes, 2015
In this paper, we present some mathematical results on the Doi-Edwards model describing the dynamics of flexible polymers in melts and concentrated solutions.
Chupin, Laurent
core   +3 more sources

Numerical analysis of a stabilized finite element approximation for the three-field linearized viscoelastic fluid problem using arbitrary interpolations [PDF]

open access: yes, 2016
The original publication is available at www.esaimm2an.org.In this paper we present the numerical analysis of a three-field stabilized finite element formulation recently proposed to approximate viscoelastic flows. The three-field viscoelastic fluid flow
Castillo del Barrio, Ernesto   +1 more
core   +3 more sources

Energy-variational solutions for viscoelastic fluid models

open access: yesAdvances in Nonlinear Analysis
In this article, we introduce the concept of energy-variational solutions for a class of nonlinear dissipative evolutionary equations, which turns out to be especially suited to treat viscoelastic fluid models.
Agosti Abramo   +2 more
doaj   +1 more source

Two shallow-water type models for viscoelastic flows from kinetic theory for polymers solutions [PDF]

open access: yes, 2013
In this work, depending on the relation between the Deborah, the Reynolds and the aspect ratio numbers, we formally derived shallow-water type systems starting from a micro-macro description for non-Newtonian fluids in a thin domain governed by an ...
Bresch, Didier, Narbona Reina, Gladys
core   +1 more source

Incompressible limit for the compressible viscoelastic fluids in critical space

open access: yesAdvances in Nonlinear Analysis
In this article, we consider the incompressible limit of global-in-time strong solutions with arbitrary large initial velocity for the compressible viscoelastic fluids in the sense of critical Besov framework. We decouple our compressible system into two
Han Bin, Wu Dan
doaj   +1 more source

Strong stability of 2D viscoelastic Poiseuille-type flows [PDF]

open access: yes, 2014
We investigate Lp stability issues of small viscoelastic Poiseuilletype ows in two dimensions stemming from a model considered in Fang- Hua Lin, Chun Liu, and Ping Zhang (2005).
Giga, Y., Sauer, J., Schade, K.
core   +1 more source

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