Results 191 to 200 of about 9,824 (218)

Comment on ?Induction-drive magnetohydrodynamic propulsion?

Journal of Superconductivity, 1995
Expressions for the propulsion force and the electrical efficiency of the induction ripple motor are derived without making use of the geometric assumption in previous studies of this special magnetohydrodynamic drive.
A.J. Schoolderman
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Current drive via magnetohydrodynamic helicity waves in a nonuniform plasma

Physics of Fluids B: Plasma Physics, 1990
Fundamentals of low-frequency current drive produced by a packet of arbitrarily polarized nonlinear Alfvén waves in an incompressible plasma with an inhomogeneous equilibrium magnetic field and aligned fluid velocity are explored. Analysis of the equations of magnetohydrodynamics with electrical conductivity and kinematic viscosity using an eikonal ...
Richard R. Mett, J. A. Tataronis
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Current drive via magnetohydrodynamic helicity waves

Physical Review Letters, 1989
We explore fundamentals of low-frequency current drive produced by a packet of arbitrarily polarized nonlinear shear Alfven waves in an infinite, uniform magnetized plasma. Analysis of the magnetohydrodynamic equations with resistivity and viscosity yields coupled nonlinear equations for the Alfven wave amplitude and an induced magnetic field ...
Richard R. Mett, J. A. Tataronis
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Magnetohydrodynamic Microfluidic Drive of Ionic Liquids

Journal of Microelectromechanical Systems, 2014
Ionic liquids are increasingly attracting the attention of researchers in both academia and industry. However, research into ionic liquids is mainly limited in chemistry, and the electromagnetic characteristics and microfluidic/optofluidic applications of ionic liquids have been rarely studied.
Jing Wan, Yan Zuo, Zhibo Wang, Feng Yan, Lan Ge, Zhongcheng Liang   +5 more
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Experimental observation of low-frequency magnetohydrodynamic instabilities driven by energetic electrons in low hybrid current drive plasmas

Nuclear Fusion, 2020
Abstract Energetic electrons driving low-frequency magnetohydrodynamic instabilities, e.g., electron fishbone (eFB) modes and electron beta-induced Alfvén eigenmodes (eBAEs), are found in co- and counter-current drive low hybrid current drive (LHCD) plasma in HL-2A, respectively. The eBAEs are found in LHCD plasma for the first time. Two
Liming Yu, Wei Chen, Z.B. Shi, Tianbo Wang, X.T. Ding, Xiao Ji, R.R. Ma, P.W. Shi, Xue Bai, J.X. Li, B.S. Yuan, Y.G. Li, Z.C. Yang, Y.P. Zhang, Rui Ma, Xiaohui Song, Bo Lü, Jiaqi Dong, W.L. Zhong, Yi Liu, L.W. Yan, Q.W. Yang, M. Xu   +22 more
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Magnetohydrodynamic Simulation of Pulsed Poloidal Current Drive in Reversed Field Pinch Plasmas

Journal of the Physical Society of Japan, 2005
Numerical simulations using magnetohydrodynamic (MHD) equations are performed for the pulsed poloidal current drive (PPCD) in reversed field pinch (RFP) plasmas. The PPCD is simulated by reducing the toroidal magnetic field at the wall, B z ( a ), in the short period.
Hisao Ashida, Hisaya Sugimoto, Hajime Sakakita   +2 more
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Three-dimensional magnetohydrodynamic simulations of the Helicity Injected Torus with Steady Inductive drive

Physics of Plasmas, 2005
The Helicity Injected Torus with Steady Inductive drive (HIT-SI) [P. E. Sieck, W. T. Hamp, V. A. Izzo, T. R. Jarboe, B. A. Nelson, R. G. O’Neill, A. J. Redd, and R. J. Smith, IEEE Conference Record—Abstracts. 31st IEEE International Conference On Plasma Science (IEEE Catalog No. 04CH37537), 2004, p.
V.A. Izzo, T. R. Jarboe
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Modification of magnetohydrodynamic activity by lower hybrid current drive

Physics of Fluids B: Plasma Physics, 1989
The effect of magnetic islands on the propagation of lower hybrid waves is investigated analytically for a model slab equilibrium with a single helical perturbation corresponding to an m=1 or m=2 island. From the variation of k∥ inside the island, the parallel current is estimated with the same pitch as the original perturbation.
F. Romanelli, A. Cardinali, R. Bartiromo
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Nonlinear magnetohydrodynamics of pulsed parallel current drive in reversed-field pinches

Physics of Plasmas, 2008
Nonlinear simulation with a simple resistive magnetohydrodynamics model is used to investigate the stabilization of magnetic fluctuations in reversed-field pinch plasmas subject to pulsed-parallel current drive. Numerical results are diagnosed with computations of nonlinear power transfer and by evaluating sequences of profiles for linear stability ...
J.M. Reynolds-Barredo, C. R. Sovinec, S. C. Prager   +2 more
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Magnetohydrodynamic and Heat Transfer Impacts on Ferrofluid Over a Rotating Disk: An Application to Hard Disk Drives

Journal of Thermal Science and Engineering Applications, 2020
Abstract The motivation behind this article is to explore the impacts of heat transfer, magnetohydrodynamic, and hall current on two-dimensional incompressible nanofluid flow over a rotating disk. The nanofluid model utilized in the present investigation comprises the nanoparticle fraction model. Two sorts of nanoparticles to be specific
V. Loganayagi, Peri K. Kameswaran
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