A Parallel Two-fluid Code for Global Magnetic Reconnection Studies

Breslau, J.A. ; Jardin, S.C.

Princeton University. Plasma Physics Laboratory.

关键词: 70 Plasma Physics And Fusion Technology;    Two-Dimensional Calculations;    Magnetic Reconnection;    Parallel Processing;    Algorithms;   

DOI  :  10.2172/787906
RP-ID  :  PPPL-3600
RP-ID  :  AC02-76CH03073
RP-ID  :  787906

美国|英语

来源: UNT Digital Library

【 摘 要 】

This paper describes a new algorithm for the computation of two-dimensional resistive magnetohydrodynamic (MHD) and two-fluid studies of magnetic reconnection in plasmas. It has been implemented on several parallel platforms and shows good scalability up to 32 CPUs for reasonable problem sizes. A fixed, nonuniform rectangular mesh is used to resolve the different spatial scales in the reconnection problem. The resistive MHD version of the code uses an implicit/explicit hybrid method, while the two-fluid version uses an alternating-direction implicit (ADI) method. The technique has proven useful for comparing several different theories of collisional and collisionless reconnection.