Gabor Wave Packet Method to Solve Plasma Wave Equations

Pletzer, A. ; Phillips, C.K. ; Smithe, D.N.

Princeton University. Plasma Physics Laboratory.

关键词: Boundary Value Problems;    Wavelengths Boundary Value Problems;    70 Plasma Physics And Fusion Technology;    Wave Coupling;    Numerical Methods;   

DOI  :  10.2172/814689
RP-ID  :  PPPL-3825
RP-ID  :  AC02-76CH03073
RP-ID  :  814689

美国|英语

来源: UNT Digital Library

【 摘 要 】

A numerical method for solving plasma wave equations arising in the context of mode conversion between the fast magnetosonic and the slow (e.g ion Bernstein) wave is presented. The numerical algorithm relies on the expansion of the solution in Gaussian wave packets known as Gabor functions, which have good resolution properties in both real and Fourier space. The wave packets are ideally suited to capture both the large and small wavelength features that characterize mode conversion problems. The accuracy of the scheme is compared with a standard finite element approach.