Benchmarking a high-order particle-in-cell code for the simulation of a gyrotron traveling-wave tube

P Ortwein,C.-D Munz,A Marek,S.M Copplestone,J Jelonnek,A.G Litvak

doi:10.1051/epjconf/201714904020

Abstract

Benchmarking a high-order particle-in-cell code for the simulation of a gyrotron traveling-wave tube

Highlights

In recent years, several high-order methods have been proposed for the simulation of Maxwell’s equations
Discontinuous Galerkin (DG) schemes are a combination of an element local finite element formulation in which the solution is represented by a polynomial and a finite volume method which couples adjacent cells over the cells surfaces
A high-order DG scheme has been applied within a particle-in-cell solver [1], replacing the standard Yee scheme

Summary

Introduction

Several high-order methods have been proposed for the simulation of Maxwell’s equations. Benchmarking a high-order particle-in-cell code for the simulation of a gyrotron traveling-wave tube This development has been continued, leading to a three-dimensional full-wave particle-in-cell solver named PICLas, which has been benchmarked against a 30 GHz gyrotron operating in a TE2,3 mode [2]. A crucial step to simulate complex geometries, like the considered gyro-TWT [3, 4], is a high quality mesh.

Results

Conclusion