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Viscous streaming flows generated by objects of constant curvature (circular cylinders, infinite plates) have been well understood. Yet, characterization and understanding of such flows when multiple body length-scales are involved has not…

流体动力学 · 物理学 2020-07-08 Yashraj Bhosale , Tejaswin Parthasarathy , Mattia Gazzola

We create streaming ultracold neutral plasmas by tailoring the photoionizing laser beam that creates the plasma. By varying the electron temperature, we control the relative velocity of the streaming populations, and, in conjunction with…

等离子体物理 · 物理学 2015-06-23 P. McQuillen , J. Castro , S. Bradshaw , T. C. Killian

We present a theoretical and experimental study of boundary-driven acoustic streaming in an inhomogeneous fluid with variations in density and compressibility. In a homogeneous fluid this streaming results from dissipation in the boundary…

流体动力学 · 物理学 2018-02-07 Jonas T. Karlsen , Wei Qiu , Per Augustsson , Henrik Bruus

The dynamics of solute flow in the microscopic chamber can be studied with optical tweezers. A method based on the metallic microbeads trapped in the focused optical vortex beam is proposed. This annular beam of a twisted wavefront exerts…

软凝聚态物质 · 物理学 2023-01-11 Weronika Lamperska , Jan Masajada , Sławomir Drobczyński

Heated pipe flow is widely used in thermal engineering applications, but the presence of buoyancy force can cause intermittency, or multiple flow states at the same parameter values. Such changes in the flow lead to substantial changes in…

流体动力学 · 物理学 2025-01-22 Shijun Chu , Elena Marensi , Ashley P. Willis

We explore the strengths and limitations of using a standard Michelson interferometer to sample line-of-sight-averaged temperature in water via two experimental setups: slow-varying temperature in static fluid and fast temperature…

流体动力学 · 物理学 2023-11-01 Xinyang Ge , Joanna A. Zielińska , Sergio Maldonado

Plasma turbulence is the dominant transport mechanism for heat and particles in magnetized plasmas in linear devices and tokamaks, so the study of turbulence is important in limiting and controlling this transport. Linear devices provide an…

等离子体物理 · 物理学 2017-11-17 Jarrod Leddy , Ben Dudson

In situ thermal transport measurement of flowing fluid could be useful for the characterization and diagnosis of practical thermal systems such as fluid heat exchangers and thermal energy storage systems. Despite abundant reports on the…

流体动力学 · 物理学 2021-05-04 Jian Zeng , Ka Man Chung , Sarath Reddy Adapa , Tianshi Feng , Renkun Chen

In this study, we employ molecular simulations to investigate the enhancement in thermal conductance at the solid/liquid interface in the presence of a meniscus reported previously (Klochko et al., Phys. Chem. Chem. Phys. 25(4):3298-3308,…

软凝聚态物质 · 物理学 2024-08-23 Abdullah El-Rifai , Liudmyla Klochko , Sreehari Perumanath , David Lacroix , Rohit Pillai , Mykola Isaiev

Utilizing high-resolution imaging and spectroscopic observations from the New Vacuum Solar Telescope (NVST), the Interface Region Imaging Spectrograph (IRIS), and the Solar Dynamics Observatory (SDO), we investigated the nature and origin…

太阳与恒星天体物理 · 物理学 2025-08-19 Hongrui Li , Hechao Chen , Chun Xia , Xiaoli Yan , Yongyuan Xiang , Jincheng Wang

We theoretically investigate the generation of ultrafast currents in insulators induced by strong few-cycle laser pulses. Ab initio simulations based on time-dependent density functional theory give insight into the atomic-scale properties…

The edge turbulence model Hermes (Dudson et al., 2017 Plasma Phys. Control. Fusion 59 05401) is set up for plasma boundary simulations with an RF antenna, using parameters characteristic of a tokamak edge. Cartesian slab geometry is used…

等离子体物理 · 物理学 2025-09-11 M. V. Umansky , B. D. Dudson , T. G. Jenkins , J. R. Myra , D. N. Smithe

Intracellular cargo transport can arise from passive diffusion, active motor-driven transport along cytoskeletal filament networks, and passive advection by fluid flows entrained by such motor/cargo motion. Active and advective transport…

生物物理 · 物理学 2012-07-24 P. Khuc Trong , J. Guck , R. E. Goldstein

We study flows and interface deformations produced by the scattering of a laser beam propagating through non-absorbing turbid fluids. Light scattering produces a force density resulting from the transfer of linear momentum from the laser to…

软凝聚态物质 · 物理学 2011-11-30 Hamza Chraibi , Régis Wunenburger , Didier Lasseux , Julien Petit , Jean-Pierre Delville

The object of this paper is to study the influence of dispersed micrometer size particles on turbulent heat transfer mechanisms in wall-bounded flows. The strategic target of the current research is to set up a methodology to size and…

流体动力学 · 物理学 2008-02-11 Francesco Zonta , Cristian Marchioli , Alfredo Soldati

Viscous streaming is an efficient rectification mechanism to exploit flow inertia at small scales for fluid and particle manipulation. It typically entails a fluid vibrating around an immersed solid feature that, by concentrating stresses,…

流体动力学 · 物理学 2024-11-20 Songyuan Cui , Yashraj Bhosale , Mattia Gazzola

To examine the evolution of giant molecular clouds in the stream of a hot plasma we performed two-dimensional hydrodynamical simulations that take full account of self-gravity, heating and cooling effects and heat conduction by electrons.…

天体物理学 · 物理学 2009-11-13 W. Vieser , G. Hensler

Advances in cryogenic sciences have enabled several observations of new low-temperature physical phenomena including superconductivity, superfluidity, and Bose-Einstein condensates. Heat transfer is also critical in numerous applications…

介观与纳米尺度物理 · 物理学 2015-03-26 Paden B. Roder , Bennett E. Smith , Xuezhe Zhou , Matthew J. Crane , Peter J. Pauzauskie

Constricted blood vessels in the circulatory system can severely impact the spatiotemporal organization of red blood cells (RBCs) causing various physiological complications. In lab-on-a-chip applications, constrictions are commonly used…

We study protoplasmic streaming in plant cells such as chara brauni by simplifying the flow field to a two-dimensional Couette flow with Brownian random motion inside parallel plates. Protoplasmic streaming is receiving a lot of attention…