Results 141 to 150 of about 488 (167)
Induction-drive magnetohydrodynamic propulsion
Journal of Superconductivity, 1993 The use of magnetohydrodynamic propulsion for marine applications is reviewed with emphasis on induction-drive systems such as the “ripple” motor. Comparisons are made with direct-drive MHD propulsion systems. Application to pumps for hazardous fluids and liquid-metal coolants are also discussed.
D. L. Mitchell, D. U. Gubser
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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 +2 more
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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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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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Physics of Plasmas, 2010 A model which incorporates the effects of electron cyclotron current drive (ECCD) into the magnetohydrodynamic equations is implemented in the NIMROD code [C. R. Sovinec et al., J. Comput. Phys. 195, 355 (2004)] and used to investigate the effect of ECCD injection on the stability, growth, and dynamical behavior of magnetic islands associated with ...
Thomas G. Jenkins +4 more
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Physics of Plasmas, 2010 Three-dimensional simulations of field reversed configuration (FRC) formation and sustainment with rotating magnetic field (RMF) current drive have been performed with the NIMROD code [C. R. Sovinec et al., J. Comput. Phys. 195, 355 (2004)]. The Hall term is a zeroth order effect with strong coupling between Fourier components, and recent enhancements ...
R. D. Milroy, C. C. Kim, C. R. Sovinec
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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 +2 more
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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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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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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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