کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6919302 863682 2016 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A spectral, quasi-cylindrical and dispersion-free Particle-In-Cell algorithm
ترجمه فارسی عنوان
الگوریتم ذرات در داخل سلولی طیفی، نیمه استوانه ای و بدون پراکندگی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
We propose a spectral Particle-In-Cell (PIC) algorithm that is based on the combination of a Hankel transform and a Fourier transform. For physical problems that have close-to-cylindrical symmetry, this algorithm can be much faster than full 3D PIC algorithms. In addition, unlike standard finite-difference PIC codes, the proposed algorithm is free of spurious numerical dispersion, in vacuum. This algorithm is benchmarked in several situations that are of interest for laser-plasma interactions. These benchmarks show that it avoids a number of numerical artifacts, that would otherwise affect the physics in a standard PIC algorithm - including the zero-order numerical Cherenkov effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Physics Communications - Volume 203, June 2016, Pages 66-82
نویسندگان
, , , , ,