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An axisymmetric PIC code based on isogeometric analysis

A. BackA. CrestettoA. RatnaniE. Sonnendrücker — 2011

ESAIM: Proceedings

Isogeometric analysis has been developed recently to use basis functions resulting from the CAO description of the computational domain for the finite element spaces. The goal of this study is to develop an axisymmetric Finite Element PIC code in which specific spline Finite Elements are used to solve the Maxwell equations and the same spline functions serve as shape function for the particles. The computational domain itself is defined using splines...

Solving the Vlasov equation in complex geometries

J. AbiteboulG. LatuV. GrandgirardA. RatnaniE. SonnendrückerA. Strugarek — 2011

ESAIM: Proceedings

This paper introduces an isoparametric analysis to solve the Vlasov equation with a semi-Lagrangian scheme. A Vlasov-Poisson problem modeling a heavy ion beam in an axisymmetric configuration is considered. Numerical experiments are conducted on computational meshes targeting different geometries. The impact of the computational grid on the accuracy and the computational cost are shown. The use of analytical mapping or Bézier patches does not induce...

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