Large-time behavior of the weak solution to 3D Navier–Stokes equations

Large-time behavior of the weak solution to 3D Navier-Stokes equations

The weak solution to the Navier-Stokes equations in a bounded domain D ⊂ R3 with a smooth boundary is proved to be unique provided that it satisfies an additional requirement. This solution exists for all t ≥ 0. In a bounded domain D the solution decays exponentially fast as t → ∞ if the force term decays at a suitable rate.

existence and approximate $l^{p}$ and continuous solution of nonlinear integral equations of the hammerstein and volterra types

بسیاری از پدیده ها در جهان ما اساساً غیرخطی هستند، و توسط معادلات غیرخطی ‎‏بیان شد‎‎‏ه اند. از آنجا که ظهور کامپیوترهای رقمی با عملکرد بالا، حل مسایل خطی را آسان تر می کند. با این حال، به طور کلی به دست آوردن جوابهای دقیق از مسایل غیرخطی دشوار است. روش عددی، به طور کلی محاسبه پیچیده مسایل غیرخطی را اداره می کند. با این حال، دادن نقاط به یک منحنی و به دست آوردن منحنی کامل که اغلب پرهزینه و ...

Large Time Behavior of Solutions to Some Degenerate Parabolic Equations

The purpose of this paper is to study the limit in L(Ω), as t→∞, of solutions of initial-boundary-value problems of the form ut−∆w = 0 and u ∈ β(w) in a bounded domain Ω with general boundary conditions ∂w ∂η + γ(w) 3 0. We prove that a solution stabilizes by converging as t → ∞ to a solution of the associated stationary problem. On the other hand, since in general these solutions are not uniqu...

Regularity Criterion for Weak Solution to the 3D Micropolar Fluid Equations

A study on the global regularity for a model of the 3D axisymmetric NavierStokes equations

We investigates the global regularity issue concerning a model equation proposed by Hou and Lei [3] to understand the stabilizing effects of the nonlinear terms in the 3D axisymmetric Navier-Stokes and Euler equations. Two major results are obtained. The first one establishes the global regularity of a generalized version of their model with a fractional Laplacian when the fractional power sati...