Coupling the Stokes and Navier–Stokes equations with two scalar nonlinear parabolic equations

Macarena Gómez Mármol; Francisco Ortegón Gallego

ESAIM: Mathematical Modelling and Numerical Analysis (2010)

  • Volume: 33, Issue: 1, page 157-167
  • ISSN: 0764-583X

Abstract

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This work deals with a system of nonlinear parabolic equations arising in turbulence modelling. The unknowns are the N components of the velocity field u coupled with two scalar quantities θ and φ. The system presents nonlinear turbulent viscosity A ( θ , ϕ ) and nonlinear source terms of the form θ 2 | u | 2 and θ ϕ | u | 2 lying in L1. Some existence results are shown in this paper, including L -estimates and positivity for both θ and φ.

How to cite

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Gómez Mármol, Macarena, and Ortegón Gallego, Francisco. "Coupling the Stokes and Navier–Stokes equations with two scalar nonlinear parabolic equations." ESAIM: Mathematical Modelling and Numerical Analysis 33.1 (2010): 157-167. <http://eudml.org/doc/197545>.

@article{GómezMármol2010,
abstract = { This work deals with a system of nonlinear parabolic equations arising in turbulence modelling. The unknowns are the N components of the velocity field u coupled with two scalar quantities θ and φ. The system presents nonlinear turbulent viscosity $A(\theta,\varphi)$ and nonlinear source terms of the form $\theta^2|\nabla u|^2$ and $\theta\varphi|\nabla u|^2$ lying in L1. Some existence results are shown in this paper, including $L^\infty$-estimates and positivity for both θ and φ. },
author = {Gómez Mármol, Macarena, Ortegón Gallego, Francisco},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis},
keywords = {Nonlinear parabolic systems; Stokes and Navier-Stokes equations; nonlinear turbulent viscosity; nonlinear source terms; existence; positivity},
language = {eng},
month = {3},
number = {1},
pages = {157-167},
publisher = {EDP Sciences},
title = {Coupling the Stokes and Navier–Stokes equations with two scalar nonlinear parabolic equations},
url = {http://eudml.org/doc/197545},
volume = {33},
year = {2010},
}

TY - JOUR
AU - Gómez Mármol, Macarena
AU - Ortegón Gallego, Francisco
TI - Coupling the Stokes and Navier–Stokes equations with two scalar nonlinear parabolic equations
JO - ESAIM: Mathematical Modelling and Numerical Analysis
DA - 2010/3//
PB - EDP Sciences
VL - 33
IS - 1
SP - 157
EP - 167
AB - This work deals with a system of nonlinear parabolic equations arising in turbulence modelling. The unknowns are the N components of the velocity field u coupled with two scalar quantities θ and φ. The system presents nonlinear turbulent viscosity $A(\theta,\varphi)$ and nonlinear source terms of the form $\theta^2|\nabla u|^2$ and $\theta\varphi|\nabla u|^2$ lying in L1. Some existence results are shown in this paper, including $L^\infty$-estimates and positivity for both θ and φ.
LA - eng
KW - Nonlinear parabolic systems; Stokes and Navier-Stokes equations; nonlinear turbulent viscosity; nonlinear source terms; existence; positivity
UR - http://eudml.org/doc/197545
ER -

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