Physical Review E

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Recently published articles in Phys. Rev. E in the Table of Content section "Fluid dynamics"
Updated: 2 days 20 hours ago

Is the kinetic equation for turbulent gas-particle flows ill posed?

Tue, 02/13/2018 - 10:00

Author(s): M. Reeks, D. C. Swailes, and A. D. Bragg

This paper is about the kinetic equation for gas-particle flows, in particular its well-posedness and realizability and its relationship to the generalized Langevin model (GLM) probability density function (PDF) equation. Previous analyses, e.g. [J.-P. Minier and C. Profeta, Phys. Rev. E 92, 053020 ...

[Phys. Rev. E 97, 023104] Published Tue Feb 13, 2018

Clogging in constricted suspension flows

Wed, 02/07/2018 - 10:00

Author(s): Alvaro Marin, Henri Lhuissier, Massimiliano Rossi, and Christian J. Kähler

The flow of a charged-stabilized suspension through a single constricted channel is studied experimentally by tracking the particles individually. Surprisingly, the behavior is found to be qualitatively similar to that of inertial dry granular systems: For small values of the neck-to-particle size r...

[Phys. Rev. E 97, 021102(R)] Published Wed Feb 07, 2018

Nonthermal ice nucleation observed at distorted contact lines of supercooled water drops

Tue, 02/06/2018 - 10:00

Author(s): Fan Yang, Owen Cruikshank, Weilue He, Alex Kostinski, and Raymond A. Shaw

Ice nucleation is the crucial step for ice formation in atmospheric clouds and therefore underlies climatologically relevant precipitation and radiative properties. Progress has been made in understanding the roles of temperature, supersaturation, and material properties, but an explanation for the ...

[Phys. Rev. E 97, 023103] Published Tue Feb 06, 2018

Breakup dynamics of toroidal droplets in shear-thinning fluids

Mon, 02/05/2018 - 10:00

Author(s): Alexandros A. Fragkopoulos, Ekapop Pairam, Luka Marinkovic, and Alberto Fernández-Nieves

We use toroidal droplets to study the breakup dynamics of a Newtonian liquid jet in the presence of rheologically nonlinear materials. We find that the droplets resist breakup for times that are longer than those in the presence of Newtonian liquids. More importantly, we show that our experiments ca...

[Phys. Rev. E 97, 021101(R)] Published Mon Feb 05, 2018

Three-bead steering microswimmers

Mon, 02/05/2018 - 10:00

Author(s): Mohd Suhail Rizvi, Alexander Farutin, and Chaouqi Misbah

The self-propelled microswimmers have recently attracted considerable attention as model systems for biological cell migration as well as artificial micromachines. A simple and well-studied microswimmer model consists of three identical spherical beads joined by two springs in a linear fashion with ...

[Phys. Rev. E 97, 023102] Published Mon Feb 05, 2018

Comment on “Effect of liquid temperature on sonoluminescence”

Mon, 02/05/2018 - 10:00

Author(s): Yuri A. Pishchalnikov

It has been suggested that bubble-wall velocities cannot exceed the sound speed in the liquid at the bubble wall [K. Yasui, Phys. Rev. E 64, 016310 (2001).]. Here we show that this upper bound was derived omitting the partial derivatives with respect to time, i.e., assuming that the flow was in the ...

[Phys. Rev. E 97, 027101] Published Mon Feb 05, 2018

Mixing and pumping by pairs of helices in a viscous fluid

Thu, 02/01/2018 - 10:00

Author(s): Amy Buchmann, Lisa J. Fauci, Karin Leiderman, Eva Strawbridge, and Longhua Zhao

Here, we study the fluid dynamics of a pair of rigid helices rotating at a constant velocity, tethered at their bases, in a viscous fluid. Our computations use a regularized Stokeslet framework, both with and without a bounding plane, so we are able to discern precisely what flow features are unacco...

[Phys. Rev. E 97, 023101] Published Thu Feb 01, 2018