Results 31 to 40 of about 112 (98)

Asymptotic analysis of Leray solution for the incompressible NSE with damping

open access: yesDemonstratio Mathematica
In 2008, Cai and Jiu showed that the Cauchy problem of the Navier-Stokes equations, with damping α∣u∣β−1u\alpha {| u| }^{\beta -1}u for α>0\alpha \gt 0 and β≥1\beta \ge 1 has global weak solutions in L2(R3){L}^{2}\left({{\mathbb{R}}}^{3}).
Blel Mongi, Benameur Jamel
doaj   +1 more source

Global well-posedness for a critical nonlocal transport equation with analytic nonlinearity

open access: yesDemonstratio Mathematica
This paper studies the well-posedness of the critical nonlocal transport equation∂tu+|D|u+∂x(f(u))=0,(t,x)∈(0,∞)×R, $${\partial }_{t}u+\vert D\vert u+{\partial }_{x}\left(f\left(u\right)\right)=0,\quad \left(t,x\right)\in \left(0,\infty \right){\times ...
Blel Mongi, Benameur Jamel
doaj   +1 more source

Analyticity and Existence of the Keller–Segel–Navier–Stokes Equations in Critical Besov Spaces

open access: yesAdvanced Nonlinear Studies, 2018
This paper deals with the Cauchy problem to the Keller–Segel model coupled with the incompressible 3-D Navier–Stokes equations. Based on so-called Gevrey regularity estimates, which are motivated by the works of Foias and Temam [20], we prove that the ...
Yang Minghua, Fu Zunwei, Liu Suying
doaj   +1 more source

On the analysis of a geometrically selective turbulence model

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper we propose some new non-uniformly-elliptic/damping regularizations of the Navier-Stokes equations, with particular emphasis on the behavior of the vorticity. We consider regularized systems which are inspired by the Baldwin-Lomax and by the
Chorfi Nejmeddine   +2 more
doaj   +1 more source

Approximate numerical procedures for the Navier–Stokes system through the generalized method of lines

open access: yesNonlinear Engineering
This article develops approximate numerical solutions through the generalized method of lines for the time-independent, incompressible Navier–Stokes system in fluid mechanics.
Botelho Fabio Silva
doaj   +1 more source

Tourbillon, Hélicité et Géométrie intrinsèque pour l'équation de Navier-Stokes [PDF]

open access: yes, 2019
We will consider the Navier-Stokes equation on a Riemannian manifold M with Ricci tensor bounded below, the involved Laplacian operator is De Rham-Hodge Laplacian.
Fang, Shizan, Qian, Zhongmin
core   +1 more source

Global strong solution of compressible flow with spherically symmetric data and density-dependent viscosities

open access: yesAdvances in Nonlinear Analysis
In this article, the Cauchy problem of a compressible Navier-Stokes system with density-dependent viscosities when the initial data are spherically symmetric is considered. Firstly, we construct the classical solution for the system in Ba(t)={r:0≤r≤a(t)}{
Guo Zhenhua, Xu Lei, Zhang Xueyao
doaj   +1 more source

Global well-posedness of a nonlinear Boussinesq-fluid-structure interaction system with large initial data

open access: yesAdvances in Nonlinear Analysis
In this article, we consider the global well-posedness of the initial-boundary value problem to a nonlinear Boussinesq-fluid-structure interaction system, which describes the motion of an incompressible Boussinesq-fluid surrounded by an elastic structure
Zhang Jie, Wang Shu, Shen Lin
doaj   +1 more source

SOME CONTROLLABILITY RESULTS FOR LINEARIZED COMPRESSIBLE NAVIER-STOKES SYSTEM. [PDF]

open access: yes, 2015
. In this article, we study the null controllability of linearized compressible Navier-Stokes system in one and two dimension. We first study the one-dimensional compressible Navier-Stokes system for non-barotropic fluid linearized around a constant ...
Debayan Maity, Maity, Debayan
core   +1 more source

On an Oberbeck-Boussinesq model relating to the motion of a viscous fluid subject to heating

open access: yesOpen Mathematics
This article surveys some results in the study of Iannelli [Su un modello di Oberbeck-Boussinesq relativo al moto di un fluido viscoso soggetto a riscaldamento, Fisica Matematica, Istituto Lombardo (rend.
Iannelli Angela
doaj   +1 more source

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