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A liquid metal flow in the form of a submerged round jet entering a square duct in the presence of a transverse magnetic field is studied experimentally. A range of high Reynolds and Hartmann numbers is considered. Flow velocity is measured…

This paper presents three batch estimation methods that use noisy ground velocity and heading measurements from a vehicle executing a circular orbit (or similar large heading change maneuver) to estimate the speed and direction of a steady,…

系统与控制 · 电气工程与系统科学 2024-07-10 Artur Wolek , James McMahon

Collective transport properties of a one-dimensional asymmetric periodic substrate (1DAPS) modulated two-dimensional dusty plasma (2DDP) driven by an unbiased sinusoidal excitation force are investigated using Langevin dynamical…

等离子体物理 · 物理学 2022-10-06 Wei Li , D. Huang , C. Reichhardt , C. J. O. Reichhardt , Yan Feng

This work presents an analysis of the ion outflow from magnetic reconnection throughout fully kinetic simulations with typical laboratory plasmas values. A symmetric initial configuration for the density and magnetic field is considered…

等离子体物理 · 物理学 2016-11-23 Emanuele Cazzola , Davide Curreli , Stefano Markidis , Giovanni Lapenta

Proton deflectometry is increasingly used in magnetized high-energy-density plasmas to observe electromagnetic fields. We describe a reconstruction algorithm to recover the electromagnetic fields from proton fluence data in 1-D. The…

等离子体物理 · 物理学 2024-08-27 W. Fox , G. Fiksel , D. B. Schaeffer , J. Griff-McMahon

Magnetothermodynamics (MTD) is the study of compression and expansion of magnetized plasma with an eye towards identifying equations of state for magneto-inertial fusion experiments. We present recent results from SSX experiments on the…

等离子体物理 · 物理学 2018-11-20 M. R. Brown , M. Kaur

Flow measurement in partially filled pipes presents greater complexity compared to fully filled systems, primarily due to the complex velocity distribution within the cross-section, which is a key source of measurement inaccuracy. To…

信号处理 · 电气工程与系统科学 2025-12-10 Mohammadhadi Mesmarian , Mohammad Mahdi Kharidar , Hossein Nejat Pishkenari

We present a new approach to calculate the particle distribution function about relativistic shocks including synchrotron losses using the method of lines with an explicit finite difference scheme. A steady, continuous, one dimensional…

高能天体物理现象 · 物理学 2015-06-03 Sean Delaney , Paul Dempsey , Peter Duffy , Turlough P. Downes

Using a new numerical code we have carried out two-dimensional simulations of the nonlinear evolution of unstable sheared magnetohydrodynamic flows. We considered two cases: a strong magnetic field (Alfven Mach number, M_a = 2.5) and a weak…

天体物理学 · 物理学 2009-10-28 Adam Frank , T. W. Jones , Dongsu Ryu , Joseph B. Gaalaas

Magnetospheres are a ubiquitous feature of magnetized bodies embedded in a plasma flow. While large planetary magnetospheres have been studied for decades by spacecraft, ion-scale "mini" magnetospheres can provide a unique environment to…

The two-dimensional hydrodynamic model for bounded dust flow dynamics in plasma is extended for analysis of driven vortex characteristics in presence of external transverse and weak magnetic field (${\bf B}$) in a planner setup and…

等离子体物理 · 物理学 2020-11-09 Modhuchandra Laishram

We reported a systematic study of spin-orbit torque biased magnetic sensors based on NiFe/Pt bilayers through both macro-spin modeling and experiments. The simulation results show that it is possible to achieve a linear sensor with a…

介观与纳米尺度物理 · 物理学 2017-12-13 Yanjun Xu , Yumeng Yang , Ziyan Luo , Baoxi Xu , Yihong Wu

The simulation of supersonic or hypersonic flows often suffers from numerical shock instabilities if the flow field contains strong shocks, limiting the further application of shock-capturing schemes. In this paper, we develop the unified…

数值分析 · 数学 2023-08-16 Weijie Ren , Wenjia Xie , Ye Zhang , Hang Yu , Zhengyu Tian

Astrophysical plasmas are often subject to both rotation and large-scale background magnetic fields. Individually, each is known to two-dimensionalize the flow in the perpendicular plane. In realistic flows, both of these effects are…

流体动力学 · 物理学 2022-01-26 Santiago J. Benavides , Keaton J. Burns , Basile Gallet , James Y-K. Cho , Glenn R. Flierl

The naturally persistent flow of hundreds of dust particles is experimentally achieved in a dusty plasma system with the asymmetric sawteeth of gears on the electrode. It is also demonstrated that the direction of the dust particle flowcan…

等离子体物理 · 物理学 2020-02-26 Ya-feng He , Bao-quan Ai , Chao-xing Dai , Chao Song , Rui-qi Wang , Wen-tao Sun , Fu-cheng Liu , Yan Feng

Three-dimensional FLASH radiation-magnetohydrodynamics (radiation-MHD) modeling is carried out to study the hydrodynamics and magnetic fields in the shock-shear derived platform. Simulations indicate that fields of tens of Tesla can be…

Magnetic reconnection in an antiparallel uniform Harris current sheet equilibrium, which is initially perturbed by a region of enhanced resistivity limited in all three dimensions, is investigated through compressible magnetohydrodynamic…

天体物理学 · 物理学 2009-10-31 Joerg Schumacher , Bernhard Kliem , Norbert Seehafer

We present a reduced order model for three dimensional unsteady pressure-driven flows in micro-channels of variable cross-section. This fast and accurate model is valid for long channels, but allows for large variations in the channel's…

流体动力学 · 物理学 2021-08-09 Leila Issa , Sajed Medlej , Ali Saleh , Issam Lakkis

First direct experimental evidence of high frequency, high toroidal mode number (n>20), magnetic fluctuations due to unstable resistive interchange modes (g-modes) resonant in the edge region of a reversed field pinch (RFP) plasma is…

等离子体物理 · 物理学 2015-05-14 M. Zuin , S. Spagnolo , R. Paccagnella , E. Martines , R. Cavazzana , G. Serianni , M. Spolaore , N. Vianello

The axisymmetric 3-D MHD outflow of a cold plasma from a magnetized and rotating astrophysical object is numerically simulated with the purpose of investigating the outflow's magnetocentrifugal acceleration and eventual collimation. Gravity…

天体物理学 · 物理学 2009-10-31 S. Bogovalov , K. Tsinganos