☆ 4.7 Article

Modeling and meshing for tokamak edge plasma simulations

COMPUTER PHYSICS COMMUNICATIONS (2024)

A 3D unstructured mesh based particle tracking code for impurity transport simulation in fusion tokamaks & nbsp;

Dhyanjyoti D. Nath et al.

Summary: This paper presents a fully 3D unstructured mesh-based global impurity transport code called GITRm. It is a Monte Carlo particle tracking code designed to simulate erosion, ionization, migration, and redistribution processes of plasma-facing components in magnetically confined fusion devices. GITRm is capable of handling complex geometries and uses graded and anisotropic elements to accurately represent plasma fields. It is built on the PUMIPic infrastructure, utilizes distributed meshes, and performs well on GPU accelerated computer systems. Three example cases are used to demonstrate the utility of GITRm, including a weak scaling study with billions of particles on multiple GPUs.

COMPUTER PHYSICS COMMUNICATIONS (2023)

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Article Computer Science, Interdisciplinary Applications

A parallel interface tracking approach for evolving geometry problems

Fan Yang et al.

Summary: This paper introduces a parallel interface tracking method for evolving geometry problems, using a conforming hybrid/mixed mesh structure with anisotropic layered elements, and employing a combination of mesh motion and modification to update the mesh while maintaining the structure and resolution of the layered elements; experimental results demonstrate the effectiveness of this approach in addressing problems with significant geometric motion or deformation.

ENGINEERING WITH COMPUTERS (2022)

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Article Computer Science, Interdisciplinary Applications