The Experts below are selected from a list of 39 Experts worldwide ranked by ideXlab platform
Loïc De Guillebon - One of the best experts on this subject based on the ideXlab platform.
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Lifting Particle Coordinate changes of magnetic moment type to Vlasov-Maxwell Hamiltonian dynamics
Physics of Plasmas, 2013Co-Authors: Philip Morrison, Michel Vittot, Loïc De GuillebonAbstract:Techniques for Coordinate changes that depend on both dependent and independent variables are developed and applied to the Maxwell-Vlasov Hamiltonian theory. Particle Coordinate changes with a new velocity variable dependent on the magnetic field, with spatial Coordinates unchanged, are lifted to the field theoretic level, by transforming the noncanonical Poisson bracket and Hamiltonian structure of the Vlasov-Maxwell dynamics. Several examples are given including magnetic Coordinates, where the velocity is decomposed into components parallel and perpendicular to the local magnetic field, and the case of spherical velocity Coordinates. An example of the lifting procedure is performed to obtain a simplified version of gyrokinetics, where the magnetic moment is used as a Coordinate and the dynamics is reduced by elimination of the electric field energy in the Hamiltonian.
Philip Morrison - One of the best experts on this subject based on the ideXlab platform.
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Lifting Particle Coordinate changes of magnetic moment type to Vlasov-Maxwell Hamiltonian dynamics
Physics of Plasmas, 2013Co-Authors: Philip Morrison, Michel Vittot, Loïc De GuillebonAbstract:Techniques for Coordinate changes that depend on both dependent and independent variables are developed and applied to the Maxwell-Vlasov Hamiltonian theory. Particle Coordinate changes with a new velocity variable dependent on the magnetic field, with spatial Coordinates unchanged, are lifted to the field theoretic level, by transforming the noncanonical Poisson bracket and Hamiltonian structure of the Vlasov-Maxwell dynamics. Several examples are given including magnetic Coordinates, where the velocity is decomposed into components parallel and perpendicular to the local magnetic field, and the case of spherical velocity Coordinates. An example of the lifting procedure is performed to obtain a simplified version of gyrokinetics, where the magnetic moment is used as a Coordinate and the dynamics is reduced by elimination of the electric field energy in the Hamiltonian.
A G Jones - One of the best experts on this subject based on the ideXlab platform.
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dynamics and stability of continuous msmpr agglomerative precipitation numerical analysis of the dual Particle Coordinate model
Computers & Chemical Engineering, 1998Co-Authors: Janusz A Wojcik, A G JonesAbstract:Abstract This article presents a bi-variant dynamic model of continuous mixed-suspension, mixed-product-removal (MSMPR) precipitation with agglomeration (aggregation and disruption) using the dual Particle Coordinate (agglomerate size and primary crystal number) population balance approach. Several finite difference methods were first examined for numerical solution of simplified model equations. The implicit forward time central space (FTCS j +1) was selected as the best for prediction of dynamic Particle size distribution (PSD) and then applied to the agglomerative case. For specific values of aggregation and disruption coefficients, K a and K d , bimodal distributions are observed and the system can also exhibit unstable dynamics. It is also predicted, however, that a supersaturation dependence of aggregation efficiency together with crystal disruption can stabilize the system transient response.
Michel Vittot - One of the best experts on this subject based on the ideXlab platform.
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Lifting Particle Coordinate changes of magnetic moment type to Vlasov-Maxwell Hamiltonian dynamics
Physics of Plasmas, 2013Co-Authors: Philip Morrison, Michel Vittot, Loïc De GuillebonAbstract:Techniques for Coordinate changes that depend on both dependent and independent variables are developed and applied to the Maxwell-Vlasov Hamiltonian theory. Particle Coordinate changes with a new velocity variable dependent on the magnetic field, with spatial Coordinates unchanged, are lifted to the field theoretic level, by transforming the noncanonical Poisson bracket and Hamiltonian structure of the Vlasov-Maxwell dynamics. Several examples are given including magnetic Coordinates, where the velocity is decomposed into components parallel and perpendicular to the local magnetic field, and the case of spherical velocity Coordinates. An example of the lifting procedure is performed to obtain a simplified version of gyrokinetics, where the magnetic moment is used as a Coordinate and the dynamics is reduced by elimination of the electric field energy in the Hamiltonian.
Janusz A Wojcik - One of the best experts on this subject based on the ideXlab platform.
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dynamics and stability of continuous msmpr agglomerative precipitation numerical analysis of the dual Particle Coordinate model
Computers & Chemical Engineering, 1998Co-Authors: Janusz A Wojcik, A G JonesAbstract:Abstract This article presents a bi-variant dynamic model of continuous mixed-suspension, mixed-product-removal (MSMPR) precipitation with agglomeration (aggregation and disruption) using the dual Particle Coordinate (agglomerate size and primary crystal number) population balance approach. Several finite difference methods were first examined for numerical solution of simplified model equations. The implicit forward time central space (FTCS j +1) was selected as the best for prediction of dynamic Particle size distribution (PSD) and then applied to the agglomerative case. For specific values of aggregation and disruption coefficients, K a and K d , bimodal distributions are observed and the system can also exhibit unstable dynamics. It is also predicted, however, that a supersaturation dependence of aggregation efficiency together with crystal disruption can stabilize the system transient response.