Results 81 to 90 of about 163 (148)

Journal of Mathematical Fluid Mechanics Global Regularity for a Class of Generalized Magnetohydrodynamic Equations

open access: yes, 2011
. It remains unknown whether or not smooth solutions of the 3D incompressible MHD equations can develop finite-time singularities. One major difficulty is due to the fact that the dissipation given by the Laplacian operator is insufficient to control the
Jiahong Wu
core  

Classical solution for compressible Navier-Stokes-Korteweg equations with zero sound speed

open access: yesAdvances in Nonlinear Analysis
We consider the compressible Navier-Stokes-Korteweg equations describing the dynamics of a liquid-vapor mixture with diffuse interphase in Rd{{\mathbb{R}}}^{d} with d≥3d\ge 3 when the initial perturbation is suitably small.
Liu Mengqian, Wu Zhigang
doaj   +1 more source

Bifurcating Vortex Solutions Of The Complex Ginzburg-Landau Equation

open access: yes, 2007
. It is shown that the complex Ginzburg-Landau (CGL) equation on the real line admits nontrivial 2ß-periodic vortex solutions that have 2n simple zeros ("vortices") per period.
Dr. Hans   +3 more
core  

Pullback attractors for a class of second-order delay evolution equations with dispersive and dissipative terms on unbounded domain

open access: yesOpen Mathematics
In this article, we investigate the long-time behavior for the ill-posed problems ∂2u∂t2+∂u∂t+λu−Δu−Δ∂u∂t−Δ∂2u∂t2=f(t,u(x,t−ρ(t)))+g(t,x),in(τ,+∞)×RN,\frac{{\partial }^{2}u}{\partial {t}^{2}}+\frac{\partial u}{\partial t}+\lambda u-\Delta u-\Delta \frac{\
Zhang Fang-hong
doaj   +1 more source

A COMPARATIVE STUDY OF THE DIRECT BOUNDARY ELEMENT METHOD AND THE DUAL RECIPROCITY BOUNDARY ELEMENT METHOD IN SOLVING THE HELMHOLTZ EQUATION

open access: yes, 2006
In this paper, we compare the direct boundary element method (BEM) and the dual reci-procity boundary element method (DRBEM) for solving the direct interior Helmholtz problem, in terms of their numerical accuracy and efficiency, as well as their ...
Song-ping Zhu, Yinglong Zhang
core  

Finite Element Approximation to the System of Shallow Water Equations, Part I: Continuous Time A Priori Error Estimates

open access: yes, 1997
. Various sophisticated finite element models for surface water flow based on the shallow water equations exist in the literature. Gray, Kolar, Luettich, Lynch and Westerink have developed a hydrodynamic model based on the generalized wave continuity ...
M. L. Martinez   +6 more
core  

A new regularity criterion for weak solutions to the 3D micropolar fluid flows in terms of the pressure

open access: yes, 2020
This note aims to giving a new regularity criterion for weak solutions to the three-dimensional micropolar fluid flows by imposing a critical growth condition on the field of pressure.
Thera, Michel   +2 more
core  

© Hindawi Publishing Corp. SYMMETRY GROUP ANALYSIS AND INVARIANT SOLUTIONS OF HYDRODYNAMIC-TYPE SYSTEMS

open access: yes, 2002
We study point and higher symmetries of systems of the hydrodynamic type with and with-out an explicit dependence on t,x. We consider such systems which satisfy the existence conditions for an infinite-dimensional group of hydrodynamic symmetries which ...
M. B. Sheftel
core  

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