Results 71 to 80 of about 1,502 (184)

Existence and uniqueness results for a coupled problem related to the stationary Navier-Stokes system

open access: yesJournal de Mathématiques Pures et Appliquées, 1997
In this paper, we consider some systems which are close to the stationary Navier-Stokes equations. The structure of these systems is the following: An N-dimensional equation for motion, the incompressibility condition and a scalar equation involving an additional unknown, k = k(x).
Climent Ezquerra, María Blanca   +1 more
openaire   +4 more sources

Stability Estimates of Optimal Solutions for the Steady Magnetohydrodynamics-Boussinesq Equations

open access: yesMathematics
This paper develops the mathematical apparatus of studying control problems for the stationary model of magnetic hydrodynamics of viscous heat-conducting fluid in the Boussinesq approximation.
Gennadii Alekseev, Yuliya Spivak
doaj   +1 more source

ANALYTICAL SOLUTION AND NEUTRAL CURVES OF THE STATIONARY LINEAR RAYLEIGH PROBLEM WITH RIGID OR MIXED BOUNDARY CONDITIONS IN CYLINDRICAL GEOMETRY

open access: yesEast European Journal of Physics, 2016
On the basis of the Navier-Stokes equations in the Boussinesq approximation in the linear approximation the classical problem of Rayleigh, dedicated to the study of stable stationary solutions to the horizontal plane layer of a viscous, incompressible ...
O. L. Andreeva, V. I. Tkachenko
doaj  

Measurement of intelligent computing via Levenberg Marquardt algorithm (LMA) for accurate prediction of fluid forces in a transient non-Newtonian thermal flow

open access: yesResults in Physics
Predicting precise results for the quantities of interest in time-dependent Computational Fluid Dynamics (CFD) simulations requires a significant investment of computational resources and time. To get around these issues, CFD simulations have been joined
Atif Asghar   +4 more
doaj   +1 more source

Numerical investigation of the history and added mass forces acting on a spherical micro-particle in rectilinear motion in the case of finite Reynolds numbers

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2017
In this paper, the study of components (quasi-stationary, history, and added mass forces) of the hydrodynamic force in several cases of rectilinear motion of the sphere at relatively low Reynolds numbers (5 < Re < 300) has been carried out.
A.N. Nuriev   +2 more
doaj  

Shape optimization of spatial chemostat models

open access: yesElectronic Journal of Differential Equations, 2019
In this work, we study the shape optimization of a continuous bioreactor in which a substrate is degraded by a microbial ecosystem in a nonhomogeneous environment.
Maria Crespo   +3 more
doaj  

Double layer air current during the high speed train flow-around

open access: yesNauka ta progres transportu, 2013
Purpose. Investigation of the jet stream mechanism during the high-speed passenger train flow around. On the basis of theoretical studies to determine the distribution of air flow velocity field, the pressure on the upper layer of the double layer air ...
R.Sh. Іsanov
doaj  

Numerical verification of stationary solutions for Navier–Stokes problems

open access: yesNumerical verification of stationary solutions for Navier–Stokes problems
We present a numerical method to enclose stationary solutions of the Navier–Stokes equations, especially 2-D driven cavity problem with regularized boundary condition. Our method is based on the infinite dimensional Newton's method by estimating the inverse of the corresponding linearized operator.
openaire  

Noncompact free boundary problems for the plane stationary Navier-Stokes equations

open access: yes
The two-dimensional flow of a steady, incompressible fluid flowing under the gravity down an inclined perturbed plane is considered. The solvability of this problem is proved. Moreover, it is shown that the perturbed flow decays exponentially to the Poiseuille-Nusselt flow which is the solution of the nonperturbed problem. The proof of these results is
Nazarov, Sergei, Pileckas, Konstantin
openaire   +1 more source

Turing complete Navier-Stokes steady states via cosymplectic geometry. [PDF]

open access: yesPNAS Nexus
Dyhr S   +3 more
europepmc   +1 more source

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