Results 31 to 40 of about 63,459 (307)

On the hydrostatic approximation of compressible anisotropic Navier–Stokes equations

open access: yesComptes Rendus. Mathématique, 2021
In this work, we obtain the hydrostatic approximation by taking the small aspect ratio limit to the Navier–Stokes equations. The aspect ratio (the ratio of the depth to horizontal width) is a geometrical constraint in general large scale motions meaning ...
Gao, Hongjun   +2 more
doaj   +1 more source

Linearization of the Navier-Stokes equations [PDF]

open access: yesE3S Web of Conferences, 2020
This paper studies mathematical models of the heat transfer process of a viscous incompressible fluid. Optimal control methods are used to solve the problem of optimal modeling.
Nazarov Serdar   +2 more
doaj   +1 more source

Proper general decomposition (PGD) for the resolution of Navier–Stokes equations [PDF]

open access: yes, 2011
In this work, the PGD method will be considered for solving some problems of fluid mechanics by looking for the solution as a sum of tensor product functions. In the first stage, the equations of Stokes and Burgers will be solved. Then, we will solve the
ALLERY, Cyrille   +5 more
core   +1 more source

Vorticity moments in four numerical simulations of the 3D Navier–Stokes equations [PDF]

open access: yes, 2013
The issue of intermittency in numerical solutions of the 3D Navier–Stokes equations on a periodic box [0,L]3 is addressed through four sets of numerical simulations that calculate a new set of variables defined by Dm(t)=(ϖ−10Ωm)αm for 1≤m≤∞ where αm=2m ...
Vincenzi, Dario   +16 more
core   +1 more source

On unbiased stochastic Navier–Stokes equations [PDF]

open access: yesProbability Theory and Related Fields, 2011
A random perturbation of a deterministic Navier-Stokes equation is considered in the form of an SPDE with Wick type nonlinearity. The nonlinear term of the perturbation can be characterized as the highest stochastic order approximation of the original nonlinear term u\nabla u.
Mikulevicius, R., Rozovskii, B. L.
openaire   +2 more sources

Splitting method and the existence of a strong solution of the Navier-Stokes equations

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
In the author’s article from the previous issue of the journal from the properties of the ONS solutions the relation between pressure and module square of velocity vector is set.
A.Sh. Akysh (Akishev)
doaj   +1 more source

Recasting Navier–Stokes equations

open access: yesJournal of Physics Communications, 2019
Abstract Classical Navier–Stokes equations fail to describe some flows in both the compressible and incompressible configurations. In this article, we propose a new methodology based on transforming the fluid mass velocity vector field to obtain a new class of continuum models.
M H Lakshminarayana Reddy   +4 more
openaire   +3 more sources

On Unique Continuation for Navier-Stokes Equations

open access: yesAbstract and Applied Analysis, 2015
We study the unique continuation properties of solutions of the Navier-Stokes equations. We take advantage of rotation transformation of the Navier-Stokes equations to prove the “logarithmic convexity” of certain quantities, which measure the suitable ...
Zhiwen Duan, Shuxia Han, Peipei Sun
doaj   +1 more source

The structure of shock waves as a test of Brenner's modifications to the Navier-Stokes equations [PDF]

open access: yes, 2007
Brenner (Physica A, vol. 349, 2005a, b, pp. 11, 60) has recently proposed modifications to the Navier-Stokes equations that are based on theoretical arguments but supported only by experiments having a fairly limited range.
Reese, Jason M.   +2 more
core   +1 more source

Euler and Navier-Stokes equations [PDF]

open access: yesPublicacions Matemàtiques, 2008
We present results concerning the local existence, regularity and possible blow up of solutions to incompressible Euler and Navier-Stokes equations.
openaire   +5 more sources

Home - About - Disclaimer - Privacy