Wilfred Anthony Cooper

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Publications associées (112)

Three-dimensional warm plasma simulations for low-frequency waves

Stephan Brunner, Wilfred Anthony Cooper, Laurent Villard, Nicolas Mellet, Pavel Popovitch

2006

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

Wilfred Anthony Cooper, Jonathan Graves

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 ...

IOP Publishing Ltd2006

Stability properties of anisotropic pressure stellarator plasmas with fluid and noninteractive energetic particles

Wilfred Anthony Cooper, Trach-Minh Tran, Jonathan Graves

The three-dimensional (3-D) VMEC code has been modified to model an energetic species with a variant of a Bi-Maxwellian distribution function that satisfies the constraint B . del F-h = 0, and the 3-D TERPSICHORE stability code has been extended to investi ...

2006

Venus plus delta f: A bootstrap current calculation module for 3-D configurations

Stephan Brunner, Wilfred Anthony Cooper, Trach-Minh Tran

A new three-dimensional code, VENUS+delta f, for neoclassical transport calculations in nonaxisymmetric toroidal systems is presented. Numerical drift orbits from the original VENUS code and the delta f method developed for tokamak transport calculations a ...

2006

Magnetic Coils for a High-Beta Quasi-Isodynamic Stellarator

Wilfred Anthony Cooper

2006

Kinetic and Fluid Ballooning Stability with Anisotropic Energetic Electron Layers

Wilfred Anthony Cooper

2006

A full-wave solver of the Maxwell's equations in 3D cold plasmas

Wilfred Anthony Cooper, Laurent Villard, Pavel Popovitch

A new solver for Maxwell's equations in three-dimensional (3D) plasma configurations is presented. The new code LEMan (Low-frequency ElectroMagnetic wave propagation) determines a global solution of the wave equation in a realistic stellarator geometry at ...

2006

Quasi-isodynamic Configuration with N=12 and High beta

Wilfred Anthony Cooper

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

Stability Properties of Anisotropic Pressure Stellarator Plasmas with Fluid and Noniteractive Energetic Particles

Wilfred Anthony Cooper, Jonathan Graves

2005

Effects of global MHD instability on operational high beta-regime in LHD

Wilfred Anthony Cooper, Kenji Tanaka

In the Large Helical Device (LHD), the highest operational averaged beta value has been expanded from 3.2% to 4% in the last 2 years by increasing the heating capability and exploring a new magnetic configuration with a high aspect ratio. Although the magn ...

IOP Publishing Ltd2005

Experimental study of current driven MHD mode in LHD

Wilfred Anthony Cooper

2005

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