Publication
Coordinate parameterisation and spectral method optimisation for Beltrami field solver in stellarator geometry
Related publications (89)
Accurate, Stable and Efficient Modal Calculations of Photoelectrically Useful Absorption in Lamellar Metallic and Semiconductor Diffraction Gratings
Solar energy has seen tremendous advances in the past years. For thin film photovoltaics, which use less of the expensive semiconductor materials, insufficient light absorption can be a limiting factor. It is hoped that by using diffractive optics to impro ...
EPFL2016An Offline-Online Riemann Solver for One-Dimensional Systems of Conservation Laws
In this paper, we present an exact Riemann solver for one-dimensional systems of conservation laws. The method is based on an offline-online computational decomposition. During the offline stage, we generate an accurate surrogate model for the solution to ...
Springer Singapore Pte Ltd2016Electron trapping mechanisms in magnetron injection guns
Jean-Philippe Hogge, Ioannis Pagonakis, Jiahuan Zhang, Konstantinos Avramidis
A key parameter for the gyrotron operation and efficiency is the presence of trapped electrons. Two electron trapping mechanisms can take place in gyrotrons: (i) the adiabatic trap and (ii) the magnetic potential well. Their influence on the gyrotron opera ...
AIP2016Isogeometric Analysis for second order Partial Differential Equations on surfaces
We consider the numerical solution of second order Partial Differential Equations (PDEs) on lower dimensional manifolds, specifically on surfaces in three dimensional spaces. For the spatial approximation, we consider Isogeometric Analysis which facilitate ...
Elsevier2015Isogeometric Analysis of high order Partial Differential Equations on surfaces
Alfio Quarteroni, Luca Dede', Andrea Bartezzaghi
We consider the numerical approximation of high order Partial Differential Equations (PDEs) defined on surfaces in the three dimensional space, with particular emphasis on closed surfaces. We consider computational domains that can be represented by B-spli ...
Elsevier2015MATHICSE Technical Report : Isogeometric analysis of high order partial differential equations on surfaces
Alfio Quarteroni, Luca Dede', Andrea Bartezzaghi
We consider the numerical approximation of high order Partial Differential Equations (PDEs) defined on surfaces in the three dimensional space, with particular emphasis on closed surfaces. We consider computational domains that can be represented by B-spli ...
MATHICSE2015Solvability analysis and numerical approximation of linearized cardiac electromechanics
Alfio Quarteroni, Ricardo Esteban Ruiz Baier
This paper is concerned with the mathematical analysis of a coupled elliptic–parabolic system modeling the interaction between the propagation of electric potential and subsequent deformation of the cardiac tissue. The problem consists in a reaction–diffus ...
World Scientific Publ Co Pte Ltd2015Hybrid guiding-centre/full-orbit simulations in non-axisymmetric magnetic geometry exploiting general criterion for guiding-centre accuracy
Jonathan Graves, Wilfred Anthony Cooper, David Pfefferlé
To identify under what conditions guiding-centre or full-orbit tracing should be used, an estimation of the spatial variation of the magnetic field is proposed, not only taking into account gradient and curvature terms but also parallel currents and the lo ...
Iop Publishing Ltd2015Analysis of a Plane Wave-Excited Subwavelength Circular Aperture in a Planar Conducting Screen Illuminating a Multilayer Uniaxial Sample
Juan Ramon Mosig, Krzysztof Michalski
A spectral domain analysis is presented of a plane wave-excited subwavelength circular aperture in a planar perfectly conducting screen in close proximity to a multilayer stack, which may comprise uniaxially anisotropic slices. The formulation employs the ...
Institute of Electrical and Electronics Engineers2015