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相关论文: Thermally-driven flows between a Leidenfrost solid…

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In this Letter, we systematically investigate the Leidenfrost temperature for hot solid substrates with various thermal diffusivities and surface roughnesses. Based on the experimental results, we build a phenomenological model that…

流体动力学 · 物理学 2023-05-24 Yuki Wakata , Xiaoliang Chen , Ning Zhu , Sijia Lyu , Xing Chao , Chao Sun

We investigate the dynamics of clumps that coexisted with/in advection-dominated accretion flows by considering thermal conductivity. Thermal conduction can be one of the effective factors in the energy transportation of ADAFs; hence it may…

高能天体物理现象 · 物理学 2022-11-09 Hussein Ayad , Maryam Samadi , Shahram Abbassi

Calculations of the heat flux carried by plasma to the wall of a magnetic fusion machine often assume that power flows only along the field lines, but this cannot be true in general. Instead, we treat the plasma as an anisotropic non-linear…

等离子体物理 · 物理学 2017-02-07 M Kovari

Droplet impact on hot surfaces results in either droplet-surface contact or droplet-surface non-contact, i.e., the Leidenfrost state. The Leidenfrost droplet is levitated upon its vapor, deteriorating the heat transfer. The Leidenfrost…

流体动力学 · 物理学 2021-05-14 Omar Lamini , Rui Wu , C. Y. Zhao

The Leidenfrost effect is a phenomenon in which a liquid, poured onto a surface significantly hotter than the liquid's boiling point, produces a layer of vapor that prevents the liquid from rapid evaporation. Rather than making physical…

统计力学 · 物理学 2022-11-24 Sergey Gavrilyuk , Henri Gouin

Steady-state advective accretion flows in the presence of thermal conduction are studied. All three components of velocity in a spherical coordinates are considered and the flow displays both inflowing and outflowing regions according to…

星系天体物理 · 物理学 2015-06-17 Fazeleh Khajenabi , Mohsen Shadmehri

A cold, thin film of liquid impinging on an isothermal hot, horizontal surface has been investigated. An approximate solution for the velocity and temperature distributions in the flow along the horizontal surface is developed, which…

流体动力学 · 物理学 2014-03-17 Jian-Jun Shu , Graham Wilks

Thermal conduction has been suggested as a possible mechanism by which sufficient extra heating is provided in radiation-dominated accretion flows. We consider the extreme case in which the generated energy due to the viscosity and the…

天体物理学 · 物理学 2007-05-23 Mohsen Shadmehri , Fazeleh Khajenabi

We show that an electric field parallel to an electrically neutral surface can generate flow of electrolytic mixtures in small channels. We term this solvo-osmotic flow, since the flow is induced by the asymmetric preferential solvation of…

流体动力学 · 物理学 2017-05-24 Sela Samin , René van Roij

Leidenfrost drops were recently found to host strong dynamics. In the present study, we investigate both experimentally and theoretically the {flows structures and stability} inside a Leidenfrost water drop as it evaporates, starting with a…

流体动力学 · 物理学 2022-12-01 Eunok Yim , Ambre Bouillant , David Quéré , François Gallaire

In this study, the thermocapillary actuation behavior of an odd viscous droplet on a uniformly heated surface is numerically investigated using a phase-field-based lattice Boltzmann method. The numerical results reveal that unlike a…

流体动力学 · 物理学 2025-10-17 Shan Jiang , He Yan , Chenxia Xie , Lei Wang

Many catalyst devices employ flow through porous structures, which leads to a complex macroscopic mass and heat transport. To unravel the detailed dynamics of the reactive gas flow, we present an all-encompassing model, consisting of…

流体动力学 · 物理学 2020-06-08 Nadiia Kulyk , Daniel Berger , Ana-Sunčana Smith , Jens Harting

Fluid flow and convective heat transfer in rotor-stator configurations, which are of great importance in different engineering applications, are treated in details in this review. The review focuses on convective heat transfer in…

流体动力学 · 物理学 2013-05-14 Souad Harmand , Julien Pellé , Sébastien Poncet , Igor V. Shevchuk

Thermal convection in fluid layers heated from below are usually realized experimentally as well as treated theoretically with fixed boundaries on which conditions for the temperature and the velocity field are prescribed. The thermal and…

流体动力学 · 物理学 2011-02-08 R. D. Simitev , F. H. Busse

The development of thermal boundary layers and plume near a section-triangular roof under different isothermal heating conditions have been the focus of numerous numerical studies. However, flow transition in this type of flow has never…

流体动力学 · 物理学 2024-11-20 Haoyu Zhai , Juan F. Torres , Yongling Zhao , Feng Xu

Dynamics of clumps within a magnetized advection dominated accretion flow is investigated by solving the collisionless Boltzmann equation and considering the drag force due to the relative velocity between the clumps and the gas. Toroidal…

星系天体物理 · 物理学 2015-06-18 Fazeleh Khajenabi , Mina Rahmani , Shahram Abbassi

The recently introduced consistent lattice Boltzmann model with energy conservation [S. Ansumali, I.V. Karlin, Phys. Rev. Lett. 95, 260605 (2005)] is extended to the simulation of thermal flows on standard lattices. The two-dimensional…

统计力学 · 物理学 2007-07-16 N. I. Prasianakis , I. V. Karlin

Transport properties in gases are significantly affected by temperature. In previous works it has been shown that when the thermal agitation in a gas is high enough, such that relativistic effects become relevant, heat dissipation is driven…

广义相对论与量子宇宙学 · 物理学 2015-04-13 A. L. Garcia-Perciante , A. Sandoval-Villalbazo , D. Brun-Battistini

Heat shuttling phenomenon is characterized by the presence of a non-zero heat flow between two bodies without net thermal bias on average. It was initially predicted in the context of nonlinear heat conduction within atomic lattices coupled…

Numerous studies have investigated the role of thermal instability in regulating the phase transition between the cold cloudy and warm diffuse medium of the interstellar medium. Considerable interest has also been devoted in investigating…

星系天体物理 · 物理学 2015-05-20 Maarit J. Mantere , Elizabeth Cole