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JOURNAL CLUB

On April 12, discuss iceberg melting live at PRFluids’ first Journal Club

The Physical Review Journal Club returns April 12 with an exclusive conversation with author Eric W. Hester along with co-authors Craig D. McConnochie, Claudia Cenedese, and Geoffrey Vasil on their recently published Physical Review Fluids paper: Aspect ratio affects iceberg melting. In the paper, Hester et al. demonstrate how the shape of an iceberg seems to have large effects on its melting rate, as summarized in this .

This live, interactive event features a short presentation from the lead author, followed by an interactive session where the group will answer your questions. .


Prfluids new v1

APS has appointed Beverley McKeon (California Institute of Technology) and Eric Lauga (University of Cambridge) as Lead Editors for the Physical Review Fluids as of February 1, 2021. They take the helm following the journal’s founding Editors John Kim and Gary Leal.


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NEW ARTICLE

Unified wall-resolved and wall-modeled method for large-eddy simulations of compressible wall-bounded flows

Wall-resolved large eddy simulations and wall-modeled large eddy simulations are still separate strategies in the field of wall-turbulence applications, and no significant attempts have been documented to blend them in order to exploit the full potential of the two methods. This work enables a smooth transition between these two techniques, designing a robust algorithm that dynamically adapts the wall treatment. In particular, we propose a unified method that employs augmented turbulent viscosity and diffusivity at the wall location and allows for preservation of both the no-slip and isothermal/adiabatic conditions.

Francesco De Vanna et al.
Phys. Rev. Fluids 6, 034614 (2021)


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NEW ARTICLE

Asymmetric instability in thin-film flow down a fiber

Experiments show that thin film flow down a fiber exhibits beading patterns whose symmetry about the fiber depends upon the fiber diameter and liquid surface tension. Both symmetric and asymmetric morphologies exhibit absolute (isolated, Plateau-Rayleigh) and convective instabilities, with the asymmetric beading dynamics resembling that of the free viscous jet indicating a minimal interaction between the liquid and fiber.

Chase T. Gabbard and Joshua B. Bostwick
Phys. Rev. Fluids 6, 034005 (2021)


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NEW ARTICLE

Effects of approach flow conditions on the unsteady three-dimensional wake structure of a square-back Ahmed body

We investigate the effects of approach flow conditions (uniform flow (UF): Case A and thick turbulent boundary layer (TBL): Case B) on the unsteady three-dimensional wake characteristics and bimodality of a square back Ahmed body. Using improved delayed detached eddy simulations we show that TBL induces a much higher ground clearance momentum deficit than UF, which significantly alters wake asymmetry orientation in the wall-normal plane and completely suppresses bimodal wake behavior in the spanwise plane. Both time-averaged and time-resolved turbulence statistics are used to explore the differences between the wake structure of the Ahmed body subject to the two approach flow conditions.

Nam Kang, Ebenezer E. Essel, Vesselina Roussinova, and Ram Balachandar
Phys. Rev. Fluids 6, 034613 (2021)


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NEW ARTICLE

Simulating particle settling in inclined narrow channels with the unresolved CFD-DEM method

Sediment settling in inclined fractures (channels with high aspect ratio) is studied numerically. Unlike the conventional Boycott effect, heterogeneous particle-clustering plumes are observed from the simulation results. Granular-induced Kelvin-Helmholtz and Rayleigh-Taylor instabilities are found to be the dominating mechanisms in this process. This work deepens the understanding of the Boycott effect in fractures, and provides various quantitative relationships of acceleration ratio versus inclination angle.

Junsheng Zeng, Pengfei Tang, Heng Li, and Dongxiao Zhang
Phys. Rev. Fluids 6, 034302 (2021)


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NEW ARTICLE

Violations of Jeffery’s theory in the dynamics of nanographene in shear flow

By using molecular dynamics simulations we demonstrate that at high Péclet numbers a nanographene suspended in a shear flow aligns at a constant orientation angle, in contrast with the rotary motion predicted by Jeffery’s theory. This instantaneous alignment with the flow of the nanographene is due to hydrodynamic slip at the fluid-particle interface, and produces a marked reduction in suspension viscosity compared to the no-slip case.

Simon Gravelle, Catherine Kamal, and Lorenzo Botto
Phys. Rev. Fluids 6, 034303 (2021)


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NEW ARTICLE

Nonuniformities in miscible two-layer two-component thin liquid films

Depositing and obtaining liquid films of uniform thickness is a problem integral to numerous applications that require multilayer films where each layer has distinct properties. Through a lubrication-theory-based model, this work studies the mechanisms that may initiate dewetting in miscible two-layer two-component films. Numerical solutions reveal that disparities in initial solute concentration between the film layers couple with circulatory flows to produce significant film-height nonuniformities. Several scaling relationships are developed to shed light on the underlying physical mechanisms.

Christopher Larsson and Satish Kumar
Phys. Rev. Fluids 6, 034004 (2021)


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NEW ARTICLE

Revealing the state space of turbulence using machine learning

We train deep convolutional autoencoders to learn highly efficient embeddings of two-dimensional turbulence. We define a new technique, latent Fourier analysis, that decomposes these representations into a set of interpretable recurrent patterns, and show how these recurrent patterns are closely related to the simple invariant solutions populating the turbulent attractor. By examining a series of bursting episodes with this framework we are able to identify large numbers of new simple invariant solutions that characterize these events and which have avoided previous detection methods.

Jacob Page, Michael P. Brenner, and Rich R. Kerswell
Phys. Rev. Fluids 6, 034402 (2021)


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NEW ARTICLE

Numerical investigation of multistability in the unstable flow of a polymer solution through porous media

The accumulation of stresses as polymeric chains cross successive pores creates streaks of high polymeric stress. Highly stretched polymeric chains in the regions of high polymeric stress resist the flow crossing these streaks, leading to eddy formation in the different regions of the pores. Multiple distinct unstable flow structures occur inside the pore above a critical Weissenberg number.

Manish Kumar et al.
Phys. Rev. Fluids 6, 033304 (2021)


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NEW ARTICLE

Maximum run-up produced by tsunami wave trains entering bays of variable cross section

Tsunami run-up in bays is essentially a wave diffraction problem in three dimensions. In this work we are showing that it is possible to treat the problem in one dimension and still obtain satisfactory results for the run-up.

N. Postacioglu and M. S. Özeren
Phys. Rev. Fluids 6, 034803 (2021)


EDITORIAL

Eight Journals Introduce Letters

March 9, 2021

At the beginning of 2021, eight Physical Review journals began publishing Letters which are intended for the accelerated publication of important new results targeted to the specific readership of each journal.


EDITORIAL

The 2020 François Naftali Frenkiel Award for Fluid Mechanics

January 21, 2021

The recipients of the 37th François Naftali Frenkiel Award for Fluid Mechanics are Matthew Butler, Finn Box, Thomas Robert, and Dominic Vella for their paper “Elasto-capillary adhesion: Effect of deformability on adhesion strength and detachment”.


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2020 Invited Papers

The collection is based on presentations at the 2019 meeting of the APS Division of Fluid Dynamics. Each year the editors of Physical Review Fluids invite the authors of selected presentations made at the Annual meeting of the APS Division of Fluid Dynamics to submit a paper based on their talk to the journal. The selections are made based on the importance and interest of the talk and the submitted papers are peer reviewed. In the current issue nine invited papers based on presentations made at the 72nd Annual meeting of the APS Division of Fluid Dynamics in Seattle, Washington in November 2019 have been published together as a Collection. The papers may contain both original research as well as a perspective on the field they cover. We believe that these are outstanding papers in fluid mechanics and look forward to publishing more excellent papers in the year ahead.


EDITORIAL

Editorial: Promoting Inclusive and Respectful Communications

November 18, 2020

APS Editor in Chief, Michael Thoennessen, discusses a new opportunity for communicating authors to include their pronouns together with their contact email in order to promote a more respectful, inclusive, and equitable environment.


EDITORIAL

Editorial: Introduction to the 37th Annual Gallery of Fluid Motion (Seattle, Washington, USA, 2019)

November 12, 2020

The 37th Annual Gallery of Fluid Motion (GFM) was held at the American Physical Society (APS) Division of Fluid Dynamics Annual Meeting in Seattle, Washington November 23–26, 2019.


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2019 Gallery of Fluid Motion

Physical Review Fluids publishes a collection of papers associated with the 2019 Gallery of Fluid Motion. These award winning works were presented at the annual meeting of the APS Division of Fluid Dynamics.

See the for the original entries.

See the on the 2019 Gallery.

Current Issue

Vol. 6, Iss. 4 — April 2021

View Current Issue

Announcements

APS Announces Outstanding Referees for 2021
February 24, 2021

APS has selected 151 Outstanding Referees for 2021 who have demonstrated exceptional work in the assessment of manuscripts published in the Physical Review journals. A full list of the Outstanding Referees is available online.

PRFluids publishes Invited Perspective on Grand Challenges in Environmental Fluid Mechanics
February 9, 2021

The Perspective was invited from the organizers of a Les Houches School of Physics meeting held in January 2019 with the intention of producing a road map of the outstanding challenges in environmental fluid mechanics.

Beverley McKeon and Eric Lauga Selected as Lead Editors for Physical Review Fluids
January 28, 2021

APS has appointed Beverley McKeon (California Institute of Technology) and Eric Lauga (University of Cambridge) as Lead Editors for the Physical Review Fluids as of February 1, 2021. They take the helm following the journal’s founding Editors John Kim and Gary Leal.

Rapid Communications papers will now be Letters
November 23, 2020

Starting January 1, 2021, the Rapid Communications article type will be renamed to Letters. With this change, all eight Physical Review journals that had previously classified articles of the type “Rapid Communications” will adopt the practice of Physical Review Applied and now publish such articles as Letters. Learn more

PRFluids publishes Invited Perspective on Machine Learning for Advancing Fluid Mechanics
October 16, 2019

The Perspective was invited by the lead editors of Physical Review Fluids in anticipation of the Machine Learning Symposium to be held at the 2019 APS Division of Fluid Dynamics conference in Seattle, Washington.

PRFluids Publishes Invited Perspective on Modeling Imbalances in the Atmosphere and Ocean
January 7, 2019

The Perspective was invited from the organizers of an interdisciplinary workshop held at the Banff International Research Station in February 2018.

PRFluids Editors’ Suggestions
June 13, 2018

As a service to our readers, we are formally marking a small number of papers published in Physical Review Fluids that the editors and referees find of particular interest, importance, or clarity.

More Announcements

Presented by the APS Division of Fluid Dynamics

The Gallery of Fluid Motion is intended to be a visual record of the aesthetic and science of contemporary fluid mechanics, to be shared both with fellow researchers and the general public.

Physical Review Journal Club

Physical Review Journal Club

APS-Max Planck Gesellschaft Pilot Transformative Agreement

2019 Journal Citation Reports

2019 Journal Citation Reports

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