Intra-ELM phase modelling of a JET ITER-like wall H-mode discharge with EDGE2D-EIRENE

D. M. Harting; S. Wiesen; M. Groth; S. Brezinsek; G. Corrigan; G. Arnoux; P. Boerner; S. Devaux; J. Flanagan; A. Järvinen; S. Marsen; D. Reiter; JET-EFDA contributors

doi:10.1016/j.jnucmat.2014.12.023

Intra-ELM phase modelling of a JET ITER-like wall H-mode discharge with EDGE2D-EIRENE

D. M. Harting^*
, S. Wiesen
, M. Groth
, S. Brezinsek
, G. Corrigan
, G. Arnoux
, P. Boerner
, S. Devaux
, J. Flanagan
, A. Järvinen
, S. Marsen
, D. Reiter
, JET-EFDA contributors

^*Corresponding author for this work

Not published at VTT

Research output: Contribution to journal › Article › Scientific › peer-review

20 Citations (Scopus)

Abstract

Abstract We present the application of an improved EDGE2D-EIRENE SOL transport model for the ELM phase utilizing kinetic correction of the sheath-heat-transmission coefficients and heat-flux-limiting factors used in fluid SOL modelling. With a statistical analysis over a range of similar type-I ELMy H-mode discharges performed at the end of the first JET ITER-like wall campaign, we achieved a fast (Δt = 200 μs) temporal evolution of the outer midplane n_e and T_e profiles and the target-heat and particle-flux profiles, which provides a good experimental data set to understand the characteristics of an ELM cycle. We will demonstrate that these kinetic corrections increase the simulated heat-flux-rise time at the target to experimentally observed times but the power-decay time at the target is still underestimated by the simulations. This longer decay times are potentially related to a change of the local recycling coefficient at the tungsten target plate directly after the heat pulse.

Original language	English
Article number	48754
Pages (from-to)	493-497
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	463
DOIs	https://doi.org/10.1016/j.jnucmat.2014.12.023
Publication status	Published - Aug 2015
MoE publication type	A1 Journal article-refereed

Funding

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement number 633053 and from the RCUK Energy Programme [grant number EP/I501045]. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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10.1016/j.jnucmat.2014.12.023

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Harting, D. M., Wiesen, S., Groth, M., Brezinsek, S., Corrigan, G., Arnoux, G., Boerner, P., Devaux, S., Flanagan, J., Järvinen, A., Marsen, S., Reiter, D., & JET-EFDA contributors (2015). Intra-ELM phase modelling of a JET ITER-like wall H-mode discharge with EDGE2D-EIRENE. Journal of Nuclear Materials, 463, 493-497. Article 48754. https://doi.org/10.1016/j.jnucmat.2014.12.023

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title = "Intra-ELM phase modelling of a JET ITER-like wall H-mode discharge with EDGE2D-EIRENE",

abstract = "Abstract We present the application of an improved EDGE2D-EIRENE SOL transport model for the ELM phase utilizing kinetic correction of the sheath-heat-transmission coefficients and heat-flux-limiting factors used in fluid SOL modelling. With a statistical analysis over a range of similar type-I ELMy H-mode discharges performed at the end of the first JET ITER-like wall campaign, we achieved a fast (Δt = 200 μs) temporal evolution of the outer midplane ne and Te profiles and the target-heat and particle-flux profiles, which provides a good experimental data set to understand the characteristics of an ELM cycle. We will demonstrate that these kinetic corrections increase the simulated heat-flux-rise time at the target to experimentally observed times but the power-decay time at the target is still underestimated by the simulations. This longer decay times are potentially related to a change of the local recycling coefficient at the tungsten target plate directly after the heat pulse.",

author = "Harting, \{D. M.\} and S. Wiesen and M. Groth and S. Brezinsek and G. Corrigan and G. Arnoux and P. Boerner and S. Devaux and J. Flanagan and A. J{\"a}rvinen and S. Marsen and D. Reiter and \{JET-EFDA contributors\}",

note = "Funding Information: This project has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under grant agreement number 633053 and from the RCUK Energy Programme [grant number EP/I501045]. The views and opinions expressed herein do not necessarily reflect those of the European Commission. Publisher Copyright: {\textcopyright} 2014 EURATOM.",

year = "2015",

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doi = "10.1016/j.jnucmat.2014.12.023",

language = "English",

volume = "463",

pages = "493--497",

journal = "Journal of Nuclear Materials",

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T1 - Intra-ELM phase modelling of a JET ITER-like wall H-mode discharge with EDGE2D-EIRENE

AU - Harting, D. M.

AU - Wiesen, S.

AU - Groth, M.

AU - Brezinsek, S.

AU - Corrigan, G.

AU - Arnoux, G.

AU - Boerner, P.

AU - Devaux, S.

AU - Flanagan, J.

AU - Järvinen, A.

AU - Marsen, S.

AU - Reiter, D.

AU - JET-EFDA contributors

N1 - Funding Information: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement number 633053 and from the RCUK Energy Programme [grant number EP/I501045]. The views and opinions expressed herein do not necessarily reflect those of the European Commission. Publisher Copyright: © 2014 EURATOM.

PY - 2015/8

Y1 - 2015/8

N2 - Abstract We present the application of an improved EDGE2D-EIRENE SOL transport model for the ELM phase utilizing kinetic correction of the sheath-heat-transmission coefficients and heat-flux-limiting factors used in fluid SOL modelling. With a statistical analysis over a range of similar type-I ELMy H-mode discharges performed at the end of the first JET ITER-like wall campaign, we achieved a fast (Δt = 200 μs) temporal evolution of the outer midplane ne and Te profiles and the target-heat and particle-flux profiles, which provides a good experimental data set to understand the characteristics of an ELM cycle. We will demonstrate that these kinetic corrections increase the simulated heat-flux-rise time at the target to experimentally observed times but the power-decay time at the target is still underestimated by the simulations. This longer decay times are potentially related to a change of the local recycling coefficient at the tungsten target plate directly after the heat pulse.

AB - Abstract We present the application of an improved EDGE2D-EIRENE SOL transport model for the ELM phase utilizing kinetic correction of the sheath-heat-transmission coefficients and heat-flux-limiting factors used in fluid SOL modelling. With a statistical analysis over a range of similar type-I ELMy H-mode discharges performed at the end of the first JET ITER-like wall campaign, we achieved a fast (Δt = 200 μs) temporal evolution of the outer midplane ne and Te profiles and the target-heat and particle-flux profiles, which provides a good experimental data set to understand the characteristics of an ELM cycle. We will demonstrate that these kinetic corrections increase the simulated heat-flux-rise time at the target to experimentally observed times but the power-decay time at the target is still underestimated by the simulations. This longer decay times are potentially related to a change of the local recycling coefficient at the tungsten target plate directly after the heat pulse.

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U2 - 10.1016/j.jnucmat.2014.12.023

DO - 10.1016/j.jnucmat.2014.12.023

M3 - Article

AN - SCOPUS:84937734984

SN - 0022-3115

VL - 463

SP - 493

EP - 497

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

M1 - 48754

ER -

Intra-ELM phase modelling of a JET ITER-like wall H-mode discharge with EDGE2D-EIRENE

Abstract

Funding

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