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Title: Striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D [On the striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D]

The application of resonant magnetic perturbations (RMPs) results in a non-axisymmetric striation pattern of magnetic field lines from the plasma interior which intersect the divertor targets. The impact on related particle and heat fluxes is investigated by three dimensional computer simulations for two different recycling conditions (controlled via neutral gas pumping). It is demonstrated that a mismatch between the particle and heat flux striation pattern, as is repeatedly observed in ITER similar shape H-mode plasmas at DIII-D, can be reproduced by the simulations for high recycling conditions at the onset of partial detachment. Finally, these results indicate that a detailed knowledge of the particle and energy balance is at least as important for realistic simulations as the consideration of a change in the magnetic field structure by plasma response effects.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [3]
  1. Forschungszentrum Julich GmbH, Julich (Germany)
  2. General Atomics, San Diego, CA (United States)
  3. Max-Planck Institute for Plasma Physics, Greifswald (Germany)
Publication Date:
Grant/Contract Number:
FC02-04ER54698
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 2; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
General Atomics, San Diego, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1376232

Frerichs, H., Schmitz, Oliver, Reiter, D., Evans, Todd E., and Feng, Y.. Striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D [On the striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D]. United States: N. p., Web. doi:10.1063/1.4864624.
Frerichs, H., Schmitz, Oliver, Reiter, D., Evans, Todd E., & Feng, Y.. Striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D [On the striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D]. United States. doi:10.1063/1.4864624.
Frerichs, H., Schmitz, Oliver, Reiter, D., Evans, Todd E., and Feng, Y.. 2014. "Striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D [On the striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D]". United States. doi:10.1063/1.4864624. https://www.osti.gov/servlets/purl/1376232.
@article{osti_1376232,
title = {Striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D [On the striation pattern of target particle and heat fluxes in three dimensional simulations for DIII-D]},
author = {Frerichs, H. and Schmitz, Oliver and Reiter, D. and Evans, Todd E. and Feng, Y.},
abstractNote = {The application of resonant magnetic perturbations (RMPs) results in a non-axisymmetric striation pattern of magnetic field lines from the plasma interior which intersect the divertor targets. The impact on related particle and heat fluxes is investigated by three dimensional computer simulations for two different recycling conditions (controlled via neutral gas pumping). It is demonstrated that a mismatch between the particle and heat flux striation pattern, as is repeatedly observed in ITER similar shape H-mode plasmas at DIII-D, can be reproduced by the simulations for high recycling conditions at the onset of partial detachment. Finally, these results indicate that a detailed knowledge of the particle and energy balance is at least as important for realistic simulations as the consideration of a change in the magnetic field structure by plasma response effects.},
doi = {10.1063/1.4864624},
journal = {Physics of Plasmas},
number = 2,
volume = 21,
place = {United States},
year = {2014},
month = {2}
}