Non-Linear PIC Simulation in a Penning Trap.

Delzanno, G. L. ; Lapenta, G. ; Finn, J.

Technical Information Center Oak Ridge Tennessee

关键词: Non-linear dynamics;    Trapping(Charged particles);    Plasma columns;    Model dynamics;    Geophysical fluids;   

RP-ID  :  DE2001786724

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

We study the non-linear dynamics of a Penning trap plasma, including the effect of the finite length and end curvature of the plasma column. A new cylindrical PIC code, called KANDINSKY, has been implemented by using a new interpolation scheme. The principal idea is to calculate the volume of each cell from a particle volume, in the same manner as it is done for the cell charge. With this new method, then density is conserved along streamlines and artificial sources of compressibility are avoided. The code has been validated with a reference Eulerian fluid code. We compare the dynamics of three different models: a model with compression effects, the standard Euler model and a geophysical fluid dynamics model. The results of our investigation prove that Penning traps can really be used to simulate geophysical fluids.