Averaged dynamics of two-phase media in a vibration field

Straube, Arthur V.; Lyubimov, Dmitry V.; Shklyaev, Sergey V.
May 2006
Physics of Fluids;May2006, Vol. 18 Issue 5, p053303
Academic Journal
The averaged dynamics of various two-phase systems in a high-frequency vibration field is studied theoretically. The continuum approach is applied to describe such systems as solid particle suspensions, emulsions, bubbly fluids, when the volume concentration of the disperse phase is small and gravity is insignificant. The dynamics of the disperse system is considered by means of the method of averaging, when the fast pulsation and slow averaged motion can be treated separately. Two averaged models for both nondeformable and deformable particles, when the compressibility of the disperse phase becomes important, are obtained. A criterion when the compressibility of bubbles cannot be neglected is figured out. For both cases the developed models are applied to study the averaged dynamics of the disperse media in an infinite plane layer under the action of transversal vibration.


Related Articles

  • Theory of particle segregation in rimming flows of suspensions containing neutrally buoyant particles. Bo Jin; Acrivos, Andreas // Physics of Fluids;Mar2004, Vol. 16 Issue 3, p641 

    It has recently been reported that an initially uniform suspension of neutrally buoyant particles within a partially filled horizontal rotating cylinder can, under certain conditions, segregate into bands of particles separated by regions of low particle concentration or even particle-free...

  • Thermal instability of compressible walters' (model B') rotating fluid permeated with suspended dust particles in porous medium. Rana, G. C.; Kango, S. K. // Advances in Applied Science Research;Aug2011, Vol. 2 Issue 4, p586 

    The thermal instability of Walters' (Model B') elastico-viscous rotating fluid permitted with suspended particles (fine dust) porous medium is considered. By applying normal mode analysis method, the dispersion relation governing the effect of suspended particles, viscoelasticity, rotation,...

  • Instability of a horizontal plane-channel flow of a dilute suspension. Asmolov, E.; Manuilovich, S. // Fluid Dynamics;Jan2009, Vol. 44 Issue 1, p45 

    The stability of a horizontal plane-channel flow of a dilute suspension is studied theoretically. It is shown that the mechanism of action of the sedimenting particles on the flow stability parameters is equivalent to the effect of a distributed flow stratification and is attributable to the...

  • Suspension extraction through an opening before clogging. Goldsztein, Guillermo H.; Santamarina, Juan C. // Applied Physics Letters;11/8/2004, Vol. 85 Issue 19, p4535 

    Fluids with particles in suspension can be extracted through an orifice until particles bridge across the opening and clog it. We derive and study a mathematical model to predict the volume of fluid that can be extracted before clogging. Numerical simulations and closed-form upper and lower...

  • Asymptotic model of the inertial migration of particles in a dilute suspension flow through the entry region of a channel. Osiptsov, Andrei A.; Asmolov, Evgeny S. // Physics of Fluids;Dec2008, Vol. 20 Issue 12, p123301 

    The inertial migration of particles in a dilute suspension flow through the entry region of a plane channel (or a circular pipe) is considered. Within the two-fluid approach, an asymptotic one-way coupling model of the dilute suspension flow in the entry region of a channel is constructed. The...

  • A numerical study of bubble interactions in Rayleigh–Taylor instability for compressible fluids. Glimm, J.; Li, X. L.; Menikoff, R.; Sharp, D. H.; Zhang, Q. // Physics of Fluids A;Nov90, Vol. 2 Issue 11, p2046 

    The late nonlinear and chaotic stage of Rayleigh–Taylor instability is characterized by the evolution of bubbles of the light fluid and spikes of the heavy fluid, each penetrating into the other phase. This paper is focused on the numerical study of bubble interactions and their effect on...

  • Fluid dynamics and thermal physics of two-phase flows: Problems and achievements. Varaksin, A. // High Temperature;May2013, Vol. 51 Issue 3, p377 

    The problem and specific aspects of studying two-phase flows laden with solid particles, droplets, and bubbles are considered. The main characteristics of two-phase flows and methods for their modeling are reported. The results of experimental and computation-theoretical investigations of...

  • Properties of low and medium frequency modes in two-fluid plasma. Ishida, Akio; Cheng, C. Z.; Peng, Y-K. M. // Physics of Plasmas;May2005, Vol. 12 Issue 5, p052113 

    Based on a two-fluid plasma model where the electron mass and the displacement current are neglected, the eigenmode properties such as the frequency and the compressibility are studied. It is found that these properties strongly depend on the two-fluid parameter kâ„“i, where k is the wave...

  • Interaction between fast particles and turbulence. Albergante, M.; Graves, J. P.; Dannert, T.; Fasoli, A.; Zonca, F.; Briguglio, S.; Vlad, G.; Fogaccia, G. // AIP Conference Proceedings;11/15/2008, Vol. 1069 Issue 1, p240 

    A systematic study of high energetic alpha particle interaction with microinstability driven turbulence (ITG) is presented. The alpha particles are considered to be passive, thus not modifying the fine structure of the turbulence, and modelled as Maxwellian distributed. Both the turbulent fields...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics