The repository is currently being upgraded to DSpace 7. Temporarily, only admins can login. Submission of items and changes to existing items is prohibited until the completion of this upgrade process.
Pellet ablation in Tokamak reactors
MetadataShow full item record
We implemented a rotational cloud model for the simulation of pellet ablation in a Tokamak reactor. We have shown that the ablation rate in the rotational cloud model converges quickly to a steady state value independent of the plasma warmup time. In contrast, the ablation rate in the non-rotating cloud model converges slowly to a value that depends upon the warmup time. We have also extended the neutral gas shielding (NGS) model for Maxwellian plasma electrons. A tumbling pellet model has been implemented. We have also compared the simulation results using a MUSCL scheme and a Discontinuous Galerkin (DG) scheme with a specialized nonuniform grid suited to the pellet problem in one space dimension, and developed a localized Discontinuous Galerkin method to solve the pellet ablation problem. One and two dimensional results are presented.
Thesis (Ph.D.)-- Wichita State University, Fairmount College of Liberal Arts and Sciences, Dept. of Mathematics, Statistics and Physics