Latest papers in fluid mechanics

Author(s): D. Reholon and S. Ghaemi

We perform drag force and particle tracking velocimetry measurements on a body-of-revolution coated with a superhydrophobic layer for Re between 5×105 and 1.5×106. As Re increases, drag reduction decreases, and a full plastron becomes isolated air bubbles as thin menisci.

[Phys. Rev. Fluids 3, 104003] Published Thu Oct 18, 2018

Author(s): Hridesh Kedia, Dustin Kleckner, Martin W. Scheeler, and William T. M. Irvine

The analog of hydrodynamic helicity in superfluids is zero for all flows. A semiclassical limit is found in the link and writhe of bundles of superfluid vortices. Numerical simulations show that the dynamics of semiclassical helicity closely resemble those seen in experiments in viscous fluids.

[Phys. Rev. Fluids 3, 104702] Published Thu Oct 18, 2018

Author(s): Nicole S. Sharp and Patrick D. Weidman

[Phys. Rev. Fluids 3, 100001] Published Wed Oct 17, 2018

Author(s): Guillaume Durey, Hoon Kwon, Quentin Magdelaine, Mathias Casiulis, Julien Mazet, Ludovic Keiser, Hadrien Bense, Pierre Colinet, José Bico, and Etienne Reyssat

This paper is associated with a video winner of a 2017 APS/DFD Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original video is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.V0020

[Phys. Rev. Fluids 3, 100501] Published Wed Oct 17, 2018

Author(s): Ambre Bouillant, Timothée Mouterde, Philippe Bourrianne, Christophe Clanet, and David Quéré

This paper is associated with a video winner of a 2017 APS/DFD Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original video is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.V0052

[Phys. Rev. Fluids 3, 100502] Published Wed Oct 17, 2018

Author(s): Pierre Chantelot, Martin Coux, Lucie Domino, Benoît Pype, Christophe Clanet, Antonin Eddi, and David Quéré

This paper is associated with a video winner of a 2017 APS/DFD Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original video is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.V0080

[Phys. Rev. Fluids 3, 100503] Published Wed Oct 17, 2018

Author(s): N. B. Speirs, M. M. Mansoor, J. Belden, R. C. Hurd, Z. Pan, and T. T. Truscott

This paper is associated with a poster winner of a 2017 APS/DFD Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original poster is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.P0030

[Phys. Rev. Fluids 3, 100504] Published Wed Oct 17, 2018

Author(s): Maxime Bassenne, Hyunji Jane Bae, and Adrián Lozano-Durán

This paper is associated with a poster winner of a 2017 APS/DFD Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original poster is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.P0026

[Phys. Rev. Fluids 3, 100505] Published Wed Oct 17, 2018

Author(s): J. Marthelot, E. F. Strong, P. M. Reis, and P.-T. Brun

This paper is associated with a poster winner of a 2017 APS/DFD Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original poster is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.P0018

[Phys. Rev. Fluids 3, 100506] Published Wed Oct 17, 2018

Author(s): Fernando Temprano-Coleto, François J. Peaudecerf, Julien R. Landel, Frédéric Gibou, and Paolo Luzzatto-Fegiz

This paper is associated with a video winner of a 2017 APS/DFD Gallery of Fluid Motion Award. The original video is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.V0098

[Phys. Rev. Fluids 3, 100507] Published Wed Oct 17, 2018

Author(s): Pedro J. Sáenz, Giuseppe Pucci, Alexis Goujon, Tudor Cristea-Platon, Jörn Dunkel, and John W. M. Bush

This paper is associated with a video winner of a 2017 APS/DFD Gallery of Fluid Motion Award for work presented at the DFD Gallery of Fluid Motion. The original video is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.V0018

[Phys. Rev. Fluids 3, 100508] Published Wed Oct 17, 2018

Author(s): Ryan McKeown, Rodolfo Ostilla-Mónico, Alain Pumir, Michael P. Brenner, and Shmuel M. Rubinstein

This paper is associated with a video winner of a 2017 APS/DFD Gallery of Fluid Motion Award. The original video is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.V0037

[Phys. Rev. Fluids 3, 100509] Published Wed Oct 17, 2018

Author(s): Paul M. Branson, M. Rayson, M. Ghisalberti, and G. N. Ivey

This paper is associated with a video winner of a 2017 APS/DFD Gallery of Fluid Motion Award. The original video is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.V0053

[Phys. Rev. Fluids 3, 100510] Published Wed Oct 17, 2018

Author(s): Azar Eslam-Panah and Heidi E. Reuter

This paper is associated with a poster winner of a 2017 APS/DFD Gallery of Fluid Motion Award for work presented at the DFD Gallery of Fluid Motion. The original poster is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.P0053

[Phys. Rev. Fluids 3, 100511] Published Wed Oct 17, 2018

Author(s): Tsuyoshi Kadokura and Hiroki Saito

Numerical simulations of the Gross-Pitaevskii equation reveal that parent and child vortices tend to be orthogonal to each other in quantum turbulence. This is a manifestation of the energy cascades and may be responsible for Kolmogorov’s law in superfluids.

[Phys. Rev. Fluids 3, 104606] Published Wed Oct 17, 2018

Author(s): Atul Varshney and Victor Steinberg

In channel flow hindered by two widely spaced obstacles, an elastic instability of the mixing layer arises near an inflection point on nonuniform shear velocity profiles, resulting in intermittent small vortices. In elastic turbulence a growth in the averaged vorticity above the transition is found.

[Phys. Rev. Fluids 3, 103303] Published Tue Oct 16, 2018

Author(s): Outi Supponen, Danail Obreschkow, and Mohamed Farhat

An experimental study of the rebounding dynamics of cavitation bubbles deformed by a free surface and by variable gravity is presented. It highlights the need to consider the rebound’s sensitivity to deformation when comparing experiments with theoretical models describing multiple bubble oscillations.

[Phys. Rev. Fluids 3, 103604] Published Tue Oct 16, 2018

Author(s): C. Frederik Brasz, Alexis Berny, and James C. Bird

A numerical investigation of retracting conical filaments with self-similar perturbations finds that for most cone angles, the perturbation amplitude must exceed a relatively large threshold for satellite drops to form. A static stability argument predicts this critical perturbation amplitude.

[Phys. Rev. Fluids 3, 104002] Published Tue Oct 16, 2018

Author(s): Hadi Nazaripoor, M. R. Flynn, Charles R. Koch, and Mohtada Sadrzadeh

The dynamics, instability, and pattern formation of thermally triggered thin liquid films are investigated numerically under a long-wave limit approximation. To determine the mechanisms responsible for instability growth and pattern formation in confined heated nanofilms, acoustic phonon (AP) and th...

[Phys. Rev. E 98, 043106] Published Mon Oct 15, 2018

Author(s): Atul Varshney and Victor Steinberg

The effect of inertia on the stability of viscoelastic flow is investigated. Three regions in the stability diagram are identified based on fluid elasticity, and a regime of flow relaminarization is discovered for high elasticity at Re up to 10, different from known turbulent drag reduction.

[Phys. Rev. Fluids 3, 103302] Published Mon Oct 15, 2018