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 12 hours ago

Steady thermocapillary migration of a droplet in a uniform temperature gradient combined with a radiation energy source at large Marangoni numbers

Tue, 07/31/2018 - 11:00

Author(s): Zuo-Bing Wu

Steady thermocapillary droplet migration in a uniform temperature gradient combined with a radiation energy source at large Reynolds and Marangoni numbers is studied. To reach a terminal quasisteady process, the magnitude of the radiation energy source is required to preserve the conservative integr...

[Phys. Rev. E 98, 013110] Published Tue Jul 31, 2018

Magnetohydrodynamics- and magnetosolutal-transport-mediated evaporation dynamics in paramagnetic pendant droplets under field stimulus

Mon, 07/30/2018 - 11:00

Author(s): Vivek Jaiswal, Raghvendra Kumar Dwivedi, A. R. Harikrishnan, and Purbarun Dhar

Evaporation kinetics of pendant droplets is an area of immense importance in several applications, in addition to possessing rich fluid dynamics and thermal transport physics. This article experimentally and analytically sheds insight into the augmented evaporation dynamics of paramagnetic pendant d...

[Phys. Rev. E 98, 013109] Published Mon Jul 30, 2018

Spatial characterization of turbulent channel flow via complex networks

Fri, 07/27/2018 - 11:00

Author(s): G. Iacobello, S. Scarsoglio, J. G. M. Kuerten, and L. Ridolfi

A network-based analysis of a turbulent channel flow numerically solved at Reτ=180 is proposed as an innovative perspective for the spatial characterization of the flow field. Two spatial networks corresponding to the streamwise and wall-normal velocity components are built, where nodes represent po...

[Phys. Rev. E 98, 013107] Published Fri Jul 27, 2018

Cavitation in a liquid-filled cavity surrounded by an elastic medium: Intercoupling of cavitation events in neighboring cavities

Fri, 07/27/2018 - 11:00

Author(s): Alexander A. Doinikov, Benjamin Dollet, and Philippe Marmottant

The subject of the present theoretical study is the dynamics of a cavitation bubble in a spherical liquid-filled cavity surrounded by an infinite elastic solid. Two objectives are pursued. The first is to derive equations for the velocity and pressure fields throughout the liquid filling the cavity ...

[Phys. Rev. E 98, 013108] Published Fri Jul 27, 2018

Spectral energy scaling in precessing turbulence

Wed, 07/25/2018 - 11:00

Author(s): A. Khlifi, A. Salhi, S. Nasraoui, F. Godeferd, and C. Cambon

We study precessing turbulence, which appears in several geophysical and astrophysical systems, by direct numerical simulations of homogeneous turbulence where precessional instability is triggered due to the imposed background flow. We show that the time development of kinetic energy K occurs in tw...

[Phys. Rev. E 98, 011102(R)] Published Wed Jul 25, 2018

Estimating stable and unstable sets and their role as transport barriers in stochastic flows

Tue, 07/24/2018 - 11:00

Author(s): Sanjeeva Balasuriya and Georg A. Gottwald

We consider the situation of a large-scale stationary flow subjected to small-scale fluctuations. Assuming that the stable and unstable manifolds of the large-scale flow are known, we quantify the mean behavior and stochastic fluctuations of particles close to the unperturbed stable and unstable man...

[Phys. Rev. E 98, 013106] Published Tue Jul 24, 2018

Solution of the Noh problem with an arbitrary equation of state

Thu, 07/19/2018 - 11:00

Author(s): A. L. Velikovich and J. L. Giuliani

The classic self-similar solutions of the nonstationary compressible Euler equations obtained for a blast-wave propagation (Sedov, Taylor, and von Neumann), a shock-wave implosion (Guderley, Landau, and Stanyukovich), or an impulsive loading of a planar target (von Hoerner, Häfele, and Zel’dovich) h...

[Phys. Rev. E 98, 013105] Published Thu Jul 19, 2018

Control of Rayleigh-Taylor instability onset time and convective velocity by differential diffusion effects

Tue, 07/17/2018 - 11:00

Author(s): S. S. Gopalakrishnan, J. Carballido-Landeira, B. Knaepen, and A. De Wit

Fingering instabilities of a miscible interface between two fluids in a gravitational field can develop due to adverse density gradients as in the well-known Rayleigh-Taylor (RT) and double-diffusive (DD) instabilities. In the absence of differential diffusion, the mixing rate and the onset time of ...

[Phys. Rev. E 98, 011101(R)] Published Tue Jul 17, 2018

Pore-scale statistics of flow and transport through porous media

Fri, 07/13/2018 - 11:00

Author(s): Soroush Aramideh, Pavlos P. Vlachos, and Arezoo M. Ardekani

Flow in porous media is known to be largely affected by pore morphology. In this work, we investigate the effects of pore geometry on the transport and spatial correlations of flow through porous media in two distinct pore structures arising from three-dimensional assemblies of overlapping and nonov...

[Phys. Rev. E 98, 013104] Published Fri Jul 13, 2018

Acoustic detection of electrostatic suppression of the Leidenfrost state

Thu, 07/12/2018 - 11:00

Author(s): Arjang Shahriari, Preston S. Wilson, and Vaibhav Bahadur

At high temperatures, a droplet can rest on a cushion of its vapor (the Leidenfrost effect). Application of an electric field across the vapor gap fundamentally eliminates the Leidenfrost state by attracting liquid towards the surface. This study uses acoustic signature tracking to study electrostat...

[Phys. Rev. E 98, 013103] Published Thu Jul 12, 2018

Axisymmetric lattice Boltzmann simulation of droplet impact on solid surfaces

Mon, 07/09/2018 - 11:00

Author(s): Hussein N. Dalgamoni and Xin Yong

Droplet-solid interaction is a ubiquitous fluid phenomenon that underpins a wide range of applications. To further the understanding of this important problem, we use an axisymmetric lattice Boltzmann method (LBM) to model the droplet impact on a solid surface with different wettability. The method ...

[Phys. Rev. E 98, 013102] Published Mon Jul 09, 2018

Controlling wetting with electrolytic solutions: Phase-field simulations of a droplet-conductor system

Thu, 07/05/2018 - 11:00

Author(s): Gaute Linga, Asger Bolet, and Joachim Mathiesen

The wetting properties of immiscible two-phase systems are crucial in applications ranging from laboratory-on-a-chip devices to field-scale oil recovery. It has long been known that effective wetting properties can be altered by the application of an electric field; a phenomenon coined as electrowet...

[Phys. Rev. E 98, 013101] Published Thu Jul 05, 2018