New Papers in Fluid Mechanics

PIV of Swirling Flow in a Conical Pipe with Vibrating Wall

Sheffield - Tue, 11/13/2018 - 06:27
Author(s):Xu, Y. | Zhang, Y.-Y. | Nicolleau, F.C.G.A. | Wang, Z.-C.
Publication year: 2018
Journal / Book title: International Journal of Applied Mechanics

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Cole-Hopf-Feynman-Kac formula and quasi-invariance for Navier-Stokes equations

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Ohkitani, K.
Publication year: 2017
Journal / Book title: Journal of Physics A: Mathematical and Theoretical

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Using modal decompositions to explain the sudden expansion of the mixing layer in the wake of a groyne in a shallow flow

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Higham, J.E. | Brevis, W. | Keylock, C.J. | Safarzadeh, A.
Publication year: 2017
Journal / Book title: Advances in Water Resources

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Analogue of the Cole-Hopf transform for the incompressible Navier–Stokes equations and its application

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Ohkitani, K.
Publication year: 2017
Journal / Book title: Journal of Turbulence

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Multifractal surrogate-data generation algorithm that preserves pointwise Hölder regularity structure, with initial applications to turbulence

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Keylock, C.J.
Publication year: 2017
Journal / Book title: Physical Review E

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Near-invariance under dynamic scaling for Navier-Stokes equations in critical spaces: A probabilistic approach to regularity problems

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Ohkitani, K.
Publication year: 2017
Journal / Book title: Journal of Physics A: Mathematical and Theoretical

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Fractional random walk lattice dynamics

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Michelitsch, T.M. | Collet, B.A. | Riascos, A.P. | Nowakowski, A.F. | Nicolleau, F.C.G.A.
Publication year: 2017
Journal / Book title: Journal of Physics A: Mathematical and Theoretical

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A fractional generalization of the classical lattice dynamics approach

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Michelitsch, T.M. | Collet, B.A. | Riascos, A.P. | Nowakowski, A.F. | Nicolleau, F.C.G.A.
Publication year: 2016
Journal / Book title: Chaos, Solitons and Fractals

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A rapid non-iterative proper orthogonal decomposition based outlier detection and correction for PIV data

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Higham, J.E. | Brevis, W. | Keylock, C.J.
Publication year: 2016
Journal / Book title: Measurement Science and Technology

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Large eddy simulation of the velocity-intermittency structure for flow over a field of symmetric dunes

Sheffield - Sat, 11/10/2018 - 01:26
Author(s):Keylock, C.J. | Chang, K.S. | Constantinescu, G.S.
Publication year: 2016
Journal / Book title: Journal of Fluid Mechanics

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Particle velocity distributions and velocity fluctuations of non-Brownian settling particles by particle-resolved direct numerical simulation

Physical Review E - Fri, 11/09/2018 - 10:00

Author(s): Ali Abbas Zaidi

Settling dynamics of non-Brownian particles is investigated using particle-resolved direct numerical simulations. There are two aims of this paper: first is to study the variation of particle velocity fluctuations with solid volume for a wide range of settling Reynolds number; second is to investiga...


[Phys. Rev. E 98, 053103] Published Fri Nov 09, 2018

Stability of the Blasius boundary layer over a heated plate in a temperature-dependent viscosity flow

Physical Review Fluids - Fri, 11/09/2018 - 10:00

Author(s): R. Miller, S. J. Garrett, P. T. Griffiths, and Z. Hussain

A stability analysis of the Blasius boundary layer formed by a fluid with a temperature-dependent viscosity is examined. The results inform whether hydrodynamically unstable flows may exist inside chemical vapor deposition reactors (CVD) and how a comprehensive CVD stability model can be developed.


[Phys. Rev. Fluids 3, 113902] Published Fri Nov 09, 2018

Experimental investigations of liquid falling films flowing under an inclined planar substrate

Physical Review Fluids - Fri, 11/09/2018 - 10:00

Author(s): Alexandros Charogiannis, Fabian Denner, Berend G. M. van Wachem, Serafim Kalliadasis, Benoit Scheid, and Christos N. Markides

Space/time-resolved film-thickness data are presented for liquid films flowing under an inverted planar substrate. Different flow regimes are observed depending on the inclination, liquid properties, and Reynolds number, with waves characterized by pronounced three-dimensionality and rivulet formation.


[Phys. Rev. Fluids 3, 114002] Published Fri Nov 09, 2018

Topographical effects of roughness on turbulence statistics in roughness sublayer

Physical Review Fluids - Fri, 11/09/2018 - 10:00

Author(s): J. Yuan and M. Aghaei Jouybari

Current understanding of turbulence in the vicinity of surface roughness is mostly limited to narrow-scale or regular roughness geometries. A numerical analysis shows how various scales of a multiscale, realistic roughness affect friction, momentum balance, and turbulence production in the roughness sublayer.


[Phys. Rev. Fluids 3, 114603] Published Fri Nov 09, 2018

Structure, dynamics, and reconnection of vortices in a nonlocal model of superfluids

Physical Review Fluids - Thu, 11/08/2018 - 10:00

Author(s): Jason Reneuve, Julien Salort, and Laurent Chevillard

A nonlocal version of the Gross-Pitaevskii equation is investigated. The role of rotons in vortex reconnection is probed through numerical simulations of both local (standard) and nonlocal models. Observed dynamics are compared with the predictions of the local induction approximation.


[Phys. Rev. Fluids 3, 114602] Published Thu Nov 08, 2018

Characteristics of turbulent boundary layer large scale motions using direct fluctuating wall shear stress measurements

Physical Review Fluids - Thu, 11/08/2018 - 10:00

Author(s): Rommel J. Pabon, Lawrence Ukeiley, Mark Sheplak, and Casey Barnard Keane

A microelectromechanical-systems-based floating element wall-shear-stress sensor (1×1 mm) is validated in a turbulent boundary layer for its ability to measure characteristics of large-scale motions.


[Phys. Rev. Fluids 3, 114604] Published Thu Nov 08, 2018

Control of flow around a low Reynolds number airfoil using longitudinal strips

Physical Review Fluids - Wed, 11/07/2018 - 10:00

Author(s): Seunghyun Cho, Jooha Kim, and Haecheon Choi

Longitudinal strips are suggested as a new device that can significantly increase the aerodynamic performance of a low Reynolds number airfoil at post-stall angles of attack. Its mechanism relies on the generation of corner vortices that delay flow separation on the airfoil suction surface.


[Phys. Rev. Fluids 3, 113901] Published Wed Nov 07, 2018

Axial and radial patterns of a bidispersed suspension in a fully filled horizontal rotating cylinder

Physical Review E - Tue, 11/06/2018 - 10:00

Author(s): John C. Nasaba and Anugrah Singh

We report on the pattern formation in a horizontal rotating cylinder fully filled with bidispersed suspension composed of non-Brownian settling and floating particles. The effect of particle mixing of different buoyancy and shape on the axial and radial pattern formation was investigated using flow ...


[Phys. Rev. E 98, 053102] Published Tue Nov 06, 2018

Lean premixed reacting flows with swirl and wall-separation zones in a contracting open circular chamber

Physical Review Fluids - Tue, 11/06/2018 - 10:00

Author(s): Zvi Rusak, Yuxin Zhang, Jung J. Choi, and Shixiao Wang

A model problem of low-Mach number lean premixed reacting swirling flows with wall-separation zones in a contracting open chamber is studied. A theoretical feasibility for a technology of swirl-assisted combustion where the reaction zone is supported by a wall-separation zone is established.


[Phys. Rev. Fluids 3, 113201] Published Tue Nov 06, 2018

Influence of interfacial elasticity on liquid entrainment in thin foam films

Physical Review Fluids - Tue, 11/06/2018 - 10:00

Author(s): Gigi Lin, John M. Frostad, and Gerald G. Fuller

Thin-film experiments with an interferometric apparatus show an absence of a strong relationship between interfacial elasticity and liquid entrainment in thin foam films, which can affect rational design of aesthetic and tactile properties in foaming consumer products.


[Phys. Rev. Fluids 3, 114001] Published Tue Nov 06, 2018

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