Results 41 to 50 of about 1,495 (117)

Numerical and analytical calculations of the free surface flow between two semi-infinite straights

open access: yesJournal of Applied Mathematics and Computational Mechanics, 2020
The problem of two-dimensional flow with the free surface of the jet in a region between two semi-infinite straights intersections at point O is calculated analytically for each angle Beta and numerically for each of the various values of the Weber ...
Fatma Zohra Chedala, A. Amara, M. Meflah
semanticscholar   +1 more source

An almost sure energy inequality for Markov solutions to the 3D Navier-Stokes equations

open access: yes, 2009
We prove existence of weak martingale solutions satisfying an almost sure version of the energy inequality and which constitute a (almost sure) Markov process.Comment: Submitted for the proceedings of the conference "Stochastic partial differential ...
Romito, Marco
core   +1 more source

Eigenvalues of the time—dependent fluid flow problem I

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 13, Issue 1, Page 139-144, 1990., 1988
The direct and inverse boundary value problems for the linear unsteady viscous fluid flow through a closed conduit of a circular annular cross‐section Ω with arbitrary time‐dependent pressure gradient under the third boundary conditions have been investigated.
El-Sayed M. Zayed   +1 more
wiley   +1 more source

Initial values for the Navier-Stokes equations in spaces with weights in time

open access: yes, 2014
We consider the nonstationary Navier-Stokes system in a smooth bounded domain Ω ⊂ R3 with initial value u0 ∈ Lσ(Ω). It is an important question to determine the optimal initial value condition in order to prove the existence of a unique local strong ...
R. Farwig, Y. Giga, Pen-Yuan Hsu
semanticscholar   +1 more source

POD Applied to Numerical Study of Unsteady Flow Inside Lid-driven Cavity

open access: yesJournal of Mathematical Study, 2018
Flow inside a lid-driven cavity (LDC) is studied here to elucidate bifurcation sequences of the flow at super-critical Reynolds numbers (Recr1) with the help of analyzing the time series at most energetic points in the flow domain.
Lucas Lestandi
semanticscholar   +1 more source

Results on existence for generalized nD Navier-Stokes equations

open access: yesOpen Mathematics, 2019
In this paper we consider a class of nD Navier-Stokes equations of Kirchhoff type and prove the global existence of solutions by using a new approach introduced in [Jday R., Zennir Kh., Georgiev S.G., Existence and smoothness for new class of n ...
Zennir Khaled
doaj   +1 more source

Local stability of energy estimates for the Navier--Stokes equations

open access: yes, 2017
We study the regularity of the weak limit of a sequence of dissipative solutions to the Navier--Stokes equations when no assumptions is made on the behavior of the ...
Chamorro, Diego   +2 more
core   +1 more source

Local and global solvability for the Boussinesq system in Besov spaces

open access: yesOpen Mathematics
This article focuses on local and global existence and uniqueness for the strong solution to the Boussinesq system in Rn{{\mathbb{R}}}^{n} (n≥3n\ge 3) with full viscosity in Besov spaces.
Yan Shuokai, Wang Lu, Zhang Qinghua
doaj   +1 more source

Extension of a discontinuous Galerkin finite element method to viscous rotor flow simulations [PDF]

open access: yes, 2005
Heavy vibratory loading of rotorcraft is relevant for many operational aspects of helicopters, such as the structural life span of (rotating) components, operational availability, the pilot's comfort, and the effectiveness of weapon targeting systems.
Boelens, O.J.   +4 more
core   +4 more sources

Heat and mass transfer flow of nanofluids in presence of chemical reaction with partial slip conditions

open access: yes, 2020
A mathematical model is presented for analyzing the convective fluid over a stretching surface in the presence of nanoparticles. The analysis of heat and mass transfer of converted fluid with slip boundary condition is investigated.
G. Narender, K. Govardhan, G. Sarma
semanticscholar   +1 more source

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