Perspectives on Research in Computational Plasma Physics With Applications to Experiments
| Autor: | Bruce I. Cohen |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Nuclear and High Energy Physics
Tokamak Partial differential equation ComputerSystemsOrganization_COMPUTERSYSTEMIMPLEMENTATION Spheromak Spacetime Computer science business.industry MathematicsofComputing_NUMERICALANALYSIS Plasma Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas law.invention Magnetic mirror Nonlinear system Physics::Plasma Physics law ComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATION Physics::Space Physics 0103 physical sciences Aerospace engineering business Curse of dimensionality |
| Zdroj: | IEEE Transactions on Plasma Science. 48:757-767 |
| ISSN: | 1939-9375 0093-3813 |
| Popis: | Computational plasma physics was born some 50 years ago with the development of high-speed computers. Computer simulation is well suited to the challenging nature of fundamental and applied plasma science, which exhibits enormous ranges of time and space scales, and whose underlying mathematical framework is comprised of nonlinear partial differential equations and nonlinear kinetic equations. Computational plasma physics has advanced from relatively simple calculations with limited dimensionality and scope to sophisticated and comprehensive simulation models. Moreover, computational plasma physics has matured as a significant scientific discipline with a rigorous mathematical foundation and voluminous literature. While computational plasma physics has greatly benefitted from the growth in computing capability by many orders of magnitude, the contributions from innovation in methods and algorithms have been no less important. This talk presents a personal perspective on the development and application of computational plasma physics to plasmas in nature and in the laboratory. The examples described will be based on experience over the course of a career in computational plasma physics and illustrate both the fundamental plasma phenomena and the behavior of laboratory plasmas. Some of the specific examples include simulations of microinstabilities in the magnetic mirror, tokamak and spheromak plasmas, laser–plasma interactions, and the Knudsen-layer phenomena, as it affects fusion performance. The examples also illustrate the development of appropriate models and algorithms that are well suited to simulating the phenomena of interest efficiently. A particular interest of the author has been the development of multiple time-scale algorithms. |
| Databáze: | OpenAIRE |
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