Intermittency and regularity issues in 3D Navier-Stokes turbulence [PDF]
, 2005 Two related open problems in the theory of 3 D Navier-Stokes turbulence are discussed in this paper. The first is the phenomenon of intermittency in the dissipation field.
Gibbon, J. D. +5 more
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Particle Dispersion and Coherent Fine Scale Eddies in Turbulence
Journal of Fluid Science and Technology, 2008 Direct numerical simulations of homogeneous isotropic turbulence laden with particles have been conducted to clarify the relationship between particle dispersion and coherent fine scale eddies in turbulence.
Makoto SATO +2 more
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Identification of a particle collision as a finite-time blowup in turbulence
Scientific Reports, 2023 We propose an Eulerian approach to investigate the motion of particles in turbulence under the assumption that the motion of particles remains smooth in space and time until a collision between particles occurs. When the first collision happens, particle
Seulgi Lee, Changhoon Lee
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A sequential regularization method for time-dependent incompressible Navier--Stokes equations [PDF]
, 1997 The objective of the paper is to present a method, called the sequential regularization method (SRM), for the nonstationary incompressible Navier--Stokes equations from the viewpoint of regularization of differential-algebraic equations (DAEs), and to ...
Lin, Ping
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Visualization of synthetic jets at higher Stokes numbers [PDF]
EPJ Web of Conferences, 2012 Visualization of synthetic jets at higher Stokes numbers (S = 90 and 127) by the phase-locked smoke-wire technique is presented and discussed. The working fluid is air. The Reynolds numbers are quantified using hot-wire anemometry. Although our method of visualization essentially provides only qualitative results, the present study also demonstrates ...
Trávníček Zdeněk +2 more
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Scalable Block Preconditioners for Linearized Navier-Stokes Equations at High Reynolds Number
Algorithms, 2020 We review a number of preconditioners for the advection-diffusion operator and for the Schur complement matrix, which, in turn, constitute the building blocks for Constraint and Triangular Preconditioners to accelerate the iterative solution of the ...
Filippo Zanetti, Luca Bergamaschi
doaj +1 more source
Distribution of Particles and Bubbles in Turbulence at a Small Stokes Number [PDF]
Physical Review Letters, 2012 The inertia of particles driven by the turbulent flow of the surrounding fluid makes them prefer certain regions of the flow. The heavy particles lag behind the flow and tend to accumulate in the regions with less vorticity, while the light particles do the opposite.
openaire +3 more sources
A regime map for dry powder coating: the influence of material properties and process parameters
Frontiers 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
Collision and Coagulation in the Infinite-Stokes-Number Regime [PDF]
Aerosol Science and Technology, 1998 This paper presents a theoretical description of collision and coagulation in the infinite-Stokes-number limit where particle motions are only weakly correlated with the fluid. A methodology for predicting the collision frequency and the particle mean energy is developed based on the assumption of a Maxwellian velocity distribution.
Walter C. Reade, Lance R. Collins
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Oseen's correction to stokes drag on axially symmetric arbitrary particle in transverse flow: A new approach [PDF]
Theoretical and Applied Mechanics, 2014 In this paper, Oseen’s correction to Stokes drag experienced by axially symmetric particle placed in a uniform stream perpendicular to axis of symmetry(i.e. transverse flow) is obtained.
Srivastava Deepak Kumar +1 more
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