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Comparison of free-streaming ELM formulae to a Vlasov simulation
- Source :
- Journal of Nuclear Materials, Journal of Nuclear Materials, Elsevier, 2013, Proceedings of the 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, 438, Supplement, pp.S633-S637. ⟨10.1016/j.jnucmat.2013.01.133⟩, Journal of Nuclear Materials, 2013, Proceedings of the 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, 438, Supplement, pp.S633-S637. ⟨10.1016/j.jnucmat.2013.01.133⟩
- Publication Year :
- 2013
- Publisher :
- HAL CCSD, 2013.
-
Abstract
- International audience; The main drawbacks of the original free-streaming equations for edge localised mode transport in the scrape-off layer [W. Fundamenski, R.A. Pitts, Plasma Phys. Control Fusion 48 (2006) 109] are that the plasma potential is not accounted for and that only solutions for ion quantities are considered. In this work, the equations are modified and augmented in order to address these two issues. The new equations are benchmarked against (and justified by) a numerical simulation which solves the Vlasov equation in 1d1v. When the source function due to an edge localised mode is instantaneous, the modified free-streaming 'impulse response' equations agree closely with the Vlasov simulation results. When the source has a finite duration in time, the agreement worsens. However, in all cases the match is encouragingly good, thus justifying the applicability of the free-streaming approach.
- Subjects :
- Physics
Source function
Nuclear and High Energy Physics
Work (thermodynamics)
Computer simulation
Vlasov equation
Free streaming
Plasma
Plasma modeling
01 natural sciences
010305 fluids & plasmas
Nuclear Energy and Engineering
Physics::Plasma Physics
[PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph]
Quantum mechanics
0103 physical sciences
Applied mathematics
[MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP]
General Materials Science
010306 general physics
Impulse response
Subjects
Details
- Language :
- English
- ISSN :
- 00223115
- Database :
- OpenAIRE
- Journal :
- Journal of Nuclear Materials, Journal of Nuclear Materials, Elsevier, 2013, Proceedings of the 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, 438, Supplement, pp.S633-S637. ⟨10.1016/j.jnucmat.2013.01.133⟩, Journal of Nuclear Materials, 2013, Proceedings of the 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, 438, Supplement, pp.S633-S637. ⟨10.1016/j.jnucmat.2013.01.133⟩
- Accession number :
- edsair.doi.dedup.....5caeb3888d350252546660823198f94a