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On the definition of a kinetic equilibrium in global gyrokinetic simulations

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Anisotropic pressure bi-Maxwellian distribution function model for three-dimensional equilibria

Jonathan Graves, Wilfred Anthony Cooper

A formulation of the anisotropic pressure magnetohydrodynamic equilibrium problem for three-dimensional plasmas with imposed nested magnetic surfaces is developed based on a bi-Maxwellian model of the distribution function for the energetic particle specie ...

2006

Three-dimensional anisotropic pressure equilibria that model balanced tangential neutral beam injection effects

Wilfred Anthony Cooper

Fixed boundary three-dimensional anisotropic pressure equilibria are computed that are consistent with a family of distribution functions that load particles preferentially towards v parallel to similar or equal to v and model the effects of balanced tange ...

2005

Influence of non-Maxwellian velocity distributions during ECRH and ECCD on electron temperature measurements by Thomson scattering

Olivier Sauter, Roland Behn, Igor Klimanov, Petri Nikkola

Deposition of electron cyclotron waves at high-power densities for heating and current drive in a tokamak plasma generates a population of fast electrons and therefore the velocity distribution of the electron population will deviate from a Maxwellian. Apa ...

2005

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We do a case study of two different analysis techniques for studying the stochastic behavior of a randomized system/algorithms: (i) The first approach can be broadly termed as a mean value analysis (MVA), where the evolution of the mean state is studied as ...

2005

Inclusion of the specular component in the assessment of bidirectional distribution functions based on digital imaging

Marilyne Andersen, Jean-Louis Scartezzini

To describe complex fenestration systems such as novel solar blinds, new glazing or coating materials, daylight and sunlight-redirecting devices, a detailed description of their optical properties is needed, given by their Bidirectional Transmission (or Re ...

2005

Efficient collection and redistribution of the direct and diffuse components of daylight in buildings remains a major objective of advanced fenestration systems. Such systems, including novel solar blinds, new glazing or coating materials and daylight-redi ...

EPFL2004

Including of specular component in a BTDF or BRDF assessment based on digital imaging

Marilyne Andersen, Jean-Louis Scartezzini

Bi-directional Transmission (or Reflection) Distribution Functions, commonly named BTDFs (and BRDFs), are essential quantities to describe any complex fenestration system in details. They are defined as the ratio of the luminance diffused from a surface el ...

2003

Neoclassical transport coefficients for general axisymmetric equilibria in the banana regime

Olivier Sauter

Using the standard approach of neoclassical theory, a set of relatively simple kinetic equations has been obtained, suited for an implementation in a numerical code to compute a related set of distribution functions. The transport coefficients are then exp ...

2000

Modeling of an EMP conducted environment

Michel Ianoz

The International Electrotechnical Commission (IEC) decided in 1988 to produce a civil standard on the electromagnetic effects of a high altitude EMP (HEMP). Different documents pertaining to the radiated environment and to specifications and test methods ...

1996

Electron transport along open field lines in the diverted scrape-off layer of a tokamak is studied numerically via a kinetic Fokker-Planck approach. The method allows calculation of the distribution function in a situation where large parallel temperature ...

1996