Progress on coupling UEDGE and Monte-Carlo simulation codes

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Description

Our objective is to develop an accurate self-consistent model for plasma and neutral sin the edge of tokamak devices such as DIII-D and ITER. The tow-dimensional fluid model in the UEDGE code has been used successfully for simulating a wide range of experimental plasma conditions. However, when the neutral mean free path exceeds the gradient scale length of the background plasma, the validity of the diffusive and inertial fluid models in UEDGE is questionable. In the long mean free path regime, neutrals can be accurately and efficiently described by a Monte Carlo neutrals model. Coupling of the fluid plasma model ... continued below

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22 p.

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Rensink, M.E. & Rognlien, T.D. August 28, 1996.

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Description

Our objective is to develop an accurate self-consistent model for plasma and neutral sin the edge of tokamak devices such as DIII-D and ITER. The tow-dimensional fluid model in the UEDGE code has been used successfully for simulating a wide range of experimental plasma conditions. However, when the neutral mean free path exceeds the gradient scale length of the background plasma, the validity of the diffusive and inertial fluid models in UEDGE is questionable. In the long mean free path regime, neutrals can be accurately and efficiently described by a Monte Carlo neutrals model. Coupling of the fluid plasma model in UEDGE with a Monte Carlo neutrals model should improve the accuracy of our edge plasma simulations. The results described here used the EIRENE Monte Carlo neutrals code, but since information is passed to and from the UEDGE plasma code via formatted test files, any similar neutrals code such as DEGAS2 or NIMBUS could, in principle, be used.

Physical Description

22 p.

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INIS; OSTI as DE96050549

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  • Other Information: PBD: 28 Aug 1996

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  • Other: DE96050549
  • Report No.: UCRL-ID--125066
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/380308 | External Link
  • Office of Scientific & Technical Information Report Number: 380308
  • Archival Resource Key: ark:/67531/metadc679611

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • August 28, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 17, 2016, 3:38 p.m.

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Rensink, M.E. & Rognlien, T.D. Progress on coupling UEDGE and Monte-Carlo simulation codes, report, August 28, 1996; California. (digital.library.unt.edu/ark:/67531/metadc679611/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.