Zobrazeno 1 - 10
of 872
pro vyhledávání: '"Dewar, Robert"'
Publikováno v:
Physics of Plasmas 28, 112507 (2021)
We explore the existence of quasisymmetric magnetic fields in asymmetric toroidal domains. These vector fields can be identified with a class of magnetohydrodynamic equilibria in the presence of pressure anisotropy. First, using Clebsch potentials, w
Externí odkaz:
http://arxiv.org/abs/2108.01818
The guiding centre dynamics of fast particles can alter the behaviour of energetic particle driven modes with chirping frequencies. In this paper, the applicability of an earlier trapped/passing locus model [H. Hezaveh et al 2017 Nucl. Fusion 57 1260
Externí odkaz:
http://arxiv.org/abs/2012.12504
Autor:
Dewar, Robert, Pronin, Monica
Publikováno v:
In Transportation Research Part F: Psychology and Behaviour April 2023 94:466-491
Autor:
Sato, Naoki, Dewar, Robert L.
It is shown that the universal steady Euler flow field, independent of boundary shape or symmetry, in a toroidal domain with fixed boundary obeys a nonlinear Beltrami equation, with the nonlinearity arising from a Boltzmann-like, velocity-dependent f
Externí odkaz:
http://arxiv.org/abs/1708.06193
Publikováno v:
Phys. Plasmas 24, 042507-1--18 (2017)
The adiabatic limit of a recently proposed dynamical extension of Taylor relaxation, \emph{multi-region relaxed magnetohydrodynamics} (MRxMHD) is summarized, with special attention to the appropriate definition of relative magnetic helicity. The form
Externí odkaz:
http://arxiv.org/abs/1609.00930
Publikováno v:
Plasma Phys. Control. Fusion 59, 044009 (2017)
A general formulation of the problem of calculating the spectrum of stable and unstable eigenmodes of linearized perturbations about a magnetically confined toroidal plasma is presented. The analysis is based on a new hydromagnetic dynamical model, M
Externí odkaz:
http://arxiv.org/abs/1608.04939
Publikováno v:
J. Plasma Phys. 81 (2015) 515810604
Ideal magnetohydrodynamics (IMHD) is strongly constrained by an infinite number of microscopic constraints expressing mass, entropy and magnetic flux conservation in each infinitesimal fluid element, the latter preventing magnetic reconnection. By co
Externí odkaz:
http://arxiv.org/abs/1509.00240
Autor:
Fuchs, Talia L., Pearson, Antonia, Pickett, Justine, Diakos, Connie, Dewar, Robert, Chan, David, Guminski, Alexander, Menzies, Alexander, Baron-Hay, Sally, Sheen, Amy, Sioson, Loretta, Chou, Angela, Gill, Anthony J.
Publikováno v:
In Pathology August 2020 52(5):515-521
We present an extension of the multi-region relaxed magnetohydrodynamics (MRxMHD) equilibrium model that includes pressure anisotropy and general plasma flows. This anisotropic extension to our previous isotropic model is motivated by Sun and Finn's
Externí odkaz:
http://arxiv.org/abs/1405.0061
A compact version of MACRO SPITBOL, a compiler/ interpreter for a variant of SNOBOL4, has been developed for use on microcomputer systems. The techniques for producing an implementation are largely automatic in order to preserve the integrity and por
Externí odkaz:
http://arxiv.org/abs/1308.6096