Title :
Spectral element discontinuous Galerkin simulations for wake potential calculations: NEKCEM
Author :
Min, Misun ; Fischer, Paul F. ; Chae, Yong-Chul
Author_Institution :
Argonne Nat. Lab., Argonne
Abstract :
In this paper we present high-order spectral element discontinuous Galerkin simulations for wake field and wake potential calculations. Numerical discretizations are based on body-conforming hexagonal meshes on Gauss-Lobatto-Legendre grids. We demonstrate wake potential profiles for cylindrically symmetric cavity structures in 3D, including the cases for linear and quadratic transitions between two cross sections. Wake potential calculations are carried out on 2D surfaces for various bunch sizes.
Keywords :
Galerkin method; accelerator cavities; iterative methods; mesh generation; particle beam dynamics; physics computing; wakefield accelerators; 2D surfaces; Gauss-Lobatto-Legendre grids; NEKCEM computational code; beam dynamics; body-conforming hexagonal meshes; cylindrically symmetric cavity structures; numerical discretizations; spectral element discontinuous Galerkin simulations; wake fields; wake potential calculations; Beams; Computational modeling; Computer simulation; Concurrent computing; Electromagnetic fields; High performance computing; Laboratories; Mathematics; Maxwell equations; Polynomials;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440450
