Results 11 to 20 of about 63,459 (307)

Generalizations of incompressible and compressible Navier–Stokes equations to fractional time and multi-fractional space [PDF]

open access: yesScientific Reports, 2022
This study develops the governing equations of unsteady multi-dimensional incompressible and compressible flow in fractional time and multi-fractional space. When their fractional powers in time and in multi-fractional space are specified to unit integer
M. Levent Kavvas, Ali Ercan
doaj   +2 more sources

Navier-Stokes Equations with Potentials

open access: yesAbstract and Applied Analysis, 2007
We study Navier-Stokes equations perturbed with a maximal monotone operator, in a bounded domain, in 2D and 3D. Using the theory of nonlinear semigroups, we prove existence results for strong and weak solutions. Examples are also provided.
Adriana-Ioana Lefter
doaj   +4 more sources

Uniform Finite Element Error Estimates with Power-Type Asymptotic Constants for Unsteady Navier–Stokes Equations [PDF]

open access: yesEntropy, 2022
Uniform error estimates with power-type asymptotic constants of the finite element method for the unsteady Navier–Stokes equations are deduced in this paper.
Cong Xie, Kun Wang
doaj   +2 more sources

Equations of Motion and Navier–Stokes Equations

open access: yesComputation
In this research, we present the analogies between variational calculations in cosmology and in classical mechanics. Our approach is based on the invariants for transformations of affine connections defined on N-dimensional manifolds (special cases are ...
Dušan J. Simjanović   +4 more
doaj   +2 more sources

On the Navier–Stokes equations on surfaces [PDF]

open access: yesJournal of Evolution Equations, 2020
AbstractWe consider the motion of an incompressible viscous fluid that completely covers a smooth, compact and embedded hypersurface$$\Sigma $$Σwithout boundary and flows along$$\Sigma $$Σ. Local-in-time well-posedness is established in the framework of$$L_p$$Lp-$$L_q$$Lq-maximal regularity.
Jan Prüss   +2 more
openaire   +5 more sources

Global Existence and Uniqueness of The Inviscid Velocity-Vorticity Model of The g-Navier-Stokes Equations

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
In this paper, we prove the global existence and uniqueness of the weak solutions to the inviscid velocity-vorticity model of the g-Navier-Stokes equations.
Meryem Kaya, Özge Kazar
doaj   +1 more source

Analytical Solution to 1D Compressible Navier-Stokes Equations

open access: yesJournal of Function Spaces, 2021
There exist complex behavior of the solution to the 1D compressible Navier-Stokes equations in half space. We find an interesting phenomenon on the solution to 1D compressible isentropic Navier-Stokes equations with constant viscosity coefficient on x,t ...
Changsheng Dou, Zishu Zhao
doaj   +1 more source

Approximations of stochastic Navier–Stokes equations [PDF]

open access: yesStochastic Processes and their Applications, 2020
In this paper we show that solutions of two-dimensional stochastic Navier-Stokes equations driven by Brownian motion can be approximated by stochastic Navier-Stokes equations forced by pure jump noise/random kicks.
Shang, Shijie, Zhang, Tusheng
openaire   +4 more sources

Low Mach number limit for the compressible Navier–Stokes equations with density-dependent viscosity and vorticity-slip boundary condition

open access: yesBoundary Value Problems, 2020
In this paper, we consider the three-dimensional compressible Navier–Stokes equations with density-dependent viscosity and vorticity-slip boundary condition in a bounded smooth domain.
Dandan Ren, Yunting Ding, Xinfeng Liang
doaj   +1 more source

Revisiting the Reynolds-averaged Navier–Stokes equations

open access: yesOpen Physics, 2022
This study revisits the Reynolds-averaged Navier–Stokes (RANS) equations and finds that the existing literature is erroneous regarding the primary unknowns and the number of independent unknowns in the RANS. The literature claims that the Reynolds stress
Sun Bohua
doaj   +1 more source

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