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相关论文: Electrostatics in wind-blown sand

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Soil bulk density affects water storage, water and nutrient movement, and plant root activity in the soil profile. Its measurement is difficult in field conditions. Vibration-induced conductivity fluctuation was investigated to quantify…

仪器与探测器 · 物理学 2009-11-13 Andrea Sz. Kishne , Cristine L. S. Morgan , Hung-Chih Chang , Laszlo B. Kish

Properties of the solar wind are discussed and applied to the effect of the wind on motion of bodies in the Solar System. The velocity density function for the solar wind constituents is given by the $\kappa-$distribution. The relevant…

地球与行星天体物理 · 物理学 2015-06-18 Jozef Klačka

A short account of the physics of electrical discharges in gases is given in view of its historical evolution and application to planetary atmospheres. As such it serves as an introduction to the articles on particular aspects of electric…

空间物理 · 物理学 2008-04-10 R. A. Treumann , Z. Klos , M. Parrot

Parker Solar Probe (PSP) observations have revealed that most of the solar wind acceleration occurs very close to the Sun. This acceleration is partly due to the global electric potential originating from the mass disparity between…

太阳与恒星天体物理 · 物理学 2025-05-14 Maximilien Péters de Bonhome , Viviane Pierrard , Fabio Bacchini

We present an exact field-theoretic formulation for a fluctuating, generally asymmetric, salt density in the presence of a charged plate. The non-linear Poisson-Boltzmann equation is obtained as the saddle-point of our field theory action.…

软凝聚态物质 · 物理学 2007-05-23 William Kung , A. W. C. Lau

Millimeter astronomy provides valuable information on the birthplaces of planetary systems. In order to compare theoretical models with observations, the dust component has to be carefully calculated. Here, we aim to study the effects of…

In this letter we analyze the effects of an externally applied electric field on thermal fluctuations for a fluid containing charged species. We show in particular that the fluctuating Poisson-Nernst-Planck equations for charged…

流体动力学 · 物理学 2022-06-08 Jean-Philippe Péraud , Andy Nonaka , John B. Bell , Aleksandar Donev , Alejandro L. Garcia

Precipitation and dissolution are prime processes in carbonate rocks and being able to monitor them is of major importance for aquifer and reservoir exploitation or environmental studies. Electrical conductivity is a physical property…

地球物理 · 物理学 2020-09-01 Flore Rembert , Damien Jougnot , Luis Guarracino

Natural convection is usually complicated by additional factors such as rotation, shear, radiative transfer, compressibility and electromagnetic fields (in the case of electro-conductive fluids). It is shown, using results of numerical…

流体动力学 · 物理学 2022-04-20 A. Bershadskii

The article experimentally reveals and theoretically establishes the influence of electric fields on the evaporation kinetics of pendant droplets. It is shown that the evaporation kinetics of saline pendant droplets can be augmented by the…

流体动力学 · 物理学 2019-06-19 Vivek Jaiswal , Purbarun Dhar

We investigate the formation of ripples on the surface of windblown sand based on the one-dimensional model of Nishimori and Ouchi [Phys. Rev. Lett. 71, 197 (1993)], which contains the processes of saltation and grain relaxation. We carry…

材料科学 · 物理学 2009-10-31 Douglas A. Kurtze , Joseph A. Both , Daniel C. Hong

Shock electrodialysis (shock ED), an emerging electrokinetic process for water purification, leverages the new physics of deionization shock waves in porous media. In previous work, a simple leaky membrane model with surface conduction can…

流体动力学 · 物理学 2021-03-16 Huanhuan Tian , Mohammad A. Alkhadra , Martin Z. Bazant

The ambipolar electrostatic field has long been recognized as a key driver of ion escape from planetary atmospheres. Elucidating the mechanisms responsible for the generation of this field is critical for understanding atmospheric escape…

地球与行星天体物理 · 物理学 2025-09-23 Liangliang Yuan , Shuanggen Jin

The effect of solar or stellar radiation on dust particles' trajectories (the Poynting-Robertson drag) has been studied by a number of authors and applied to interplanetary dust dynamics in numerical computations. Meanwhile some important…

天体物理学 · 物理学 2009-10-30 N. N. Gor'kavyi , L. M. Ozernoy , J. C. Mather , T. Taidakova

Salt crystallization is a major cause of weathering of artworks, monuments and rocks. Damage will occur if crystals continue to grow in confinement, i.e. within the pore space of these materials generating mechanical stresses. We report on…

材料科学 · 物理学 2016-01-26 Julie Desarnaud , Daniel Bonn , Noushine Shahidzadeh

In connection with the exit of mankind and its production into open space, the problem of the nature of solar wind (SW) is acute. We have proved that a nonequilibrium inhomogeneous giant gas discharge with huge values of the E/N parameter,…

太阳与恒星天体物理 · 物理学 2022-06-09 Philipp I. Vysikaylo

Aeolian sediment transport is observed to occur on Mars as well as other extraterrestrial environments, generating ripples and dunes as on Earth. The search for terrestrial analogues of planetary bedforms, as well as environmental…

地球物理 · 物理学 2021-04-13 B. Andreotti , P. Claudin , J. J. Iversen , J. P. Merrison , K. R. Rasmussen

Electron irradiation of water-rich ices plays a significant role in initiating the chemical and physical processes on the surface of airless icy bodies in radiation environments such as Europa and Enceladus, as well as on the Moon, comets,…

地球与行星天体物理 · 物理学 2025-02-19 Yogeshwar Nath Mishra , Sankhabrata Chandra , Murthy S. Gudipati , Bryana Henderson , Dag Hanstorp , Yuk L. Yung

Electroosmosis is a fascinating effect where liquid motion is induced by an applied electric field. Counter ions accumulate in the vicinity of charged surfaces, triggering a coupling between liquid mass transport and external electric…

We consider a fast magnetosonic multifluid shock as a representation of the solar-wind termination shock. We assume the action of the transition happens in a three-step process: In the first step, the upstream supersonic solar-wind plasma…

空间物理 · 物理学 2016-02-24 Hans J. Fahr , Daniel Verscharen