Results 31 to 40 of about 90,108 (307)

A regime map for dry powder coating: the influence of material properties and process parameters

open access: yesFrontiers in Chemical Engineering, 2023
A numerical study is carried out to investigate the combined influence of material properties and process parameters on coating quality in a high shear mixer (specifically an FT4 Powder Rheometer) to construct a regime map.
Marv Khala   +4 more
doaj   +1 more source

Convergence of Parareal for the Navier-Stokes Equations Depending on the Reynolds Number [PDF]

open access: yes, 2014
The paper presents first a linear stability analysis for the time-parallel Parareal method, using an IMEX Euler as coarse and a Runge-Kutta-3 method as fine propagator, confirming that dominant imaginary eigenvalues negatively affect Parareal's convergence.
Johannes Steiner   +3 more
openaire   +3 more sources

Free boundary problems for Stokes flow, with applications to the growth of biological tissues

open access: yes, 2021
We formulate, analyse and numerically simulate what are arguably the two simplest Stokes-flow free boundary problems relevant to tissue growth, extending the classical Stokes free boundary problem by incorporating (i) a volumetric source (the nutrient ...
King, John   +3 more
core   +2 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

Efficiency of capture of inertia aerosol particles in a periodic cell with a porous cylinder

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2022
In this study, aerosol flow in circular and rectangular periodic cells of a regular row of porous cylinders is simulated. The hydrodynamic field of the carrier medium flow outside and in the domain of the porous cylinder is described in the approximation
A.R. Khaziev   +3 more
doaj   +1 more source

Kolmogorov's dissipation number and the number of degrees of freedom for the 3D Navier–Stokes equations [PDF]

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2019
AbstractKolmogorov's theory of turbulence predicts that only wavenumbers below some critical value, called Kolmogorov's dissipation number, are essential to describe the evolution of a three-dimensional (3D) fluid flow. A determining wavenumber, first introduced by Foias and Prodi for the 2D Navier–Stokes equations, is a mathematical analogue of ...
Cheskidov, Alexey, Dai, Mimi
openaire   +3 more sources

About the use of the Stokes number for mathematical modeling of two-phase jet flows

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2019
The appropriateness of using the Stokes number as a single similitude parameter for representation of the results of research on two-phase jet flows in a criteria form was considered.
Yu.V. Zuev
doaj   +1 more source

Modeling the Inertial Deposition of Aerosol Particles in a Mixed-Type Filter

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
This article presents a mathematical model that describes the movement of suspended aerosol particles in a mixed-type filter. For the carrier medium, a model of incompressible fluid flow in a porous periodic element consisting of many cylinders with ...
D. A. Safin   +3 more
doaj   +1 more source

Stokes--anti-Stokes light scattering process: -- A photon-wave-function approach

open access: yes, 2020
The Photon wave function Formalism provides an alternative description of some quantum optical phenomena in a more intuitive way. We use this formalism to describe the process of correlated Stokes--anti-Stokes Raman scattering.
A. Jorio (2056687)   +3 more
core   +1 more source

Solutions of the Navier–Stokes Equation at Large Reynolds Number [PDF]

open access: yesSIAM Journal on Applied Mathematics, 1975
The problem of two-dimensional incompressible laminar flow past a bluff body at large Reynolds number $( R )$ is discussed. The governing equations are the Navier–Stokes equations. For $R = \infty $, the Euler equations are obtained. A solution for R large should be obtained by a perturbation of an Euler solution. However, for given boundary conditions,
openaire   +3 more sources

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