Pedestal-to-Wall 3D Fluid Transport Simulations on DIII-D
Abstract
The 3D fluid-plasma edge transport code EMC3-EIRENE is used to test several magnetic field models with and without plasma response against DIII-D experimental data for even and odd-parity n = 3 magnetic field perturbations. The field models include ideal and extended MHD equilibria, and the vacuum approximation. Plasma response is required to reduce the stochasticity in the pedestal region for even-parity fields, however too much screening suppresses the measured splitting of the downstream T-e profile. Odd-parity perturbations result in weak tearing and only small additional peaks in the downstream measurements. In this case plasma response is required to increase the size of the lobe structure. No single model is able to simultaneously reproduce the upstream and downstream characteristics for both odd and even-parity perturbations.
- Authors:
-
[1];
[2];
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Univ. of Wisconsin, Madison, WI (United States)
- Oak Ridge Inst. for Science and Education (ORISE), Oak Ridge, TN (United States); General Atomics, San Diego, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); General Atomics, San Diego, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1364303
- Alternate Identifier(s):
- OSTI ID: 1353405; OSTI ID: 1374591; OSTI ID: 1890824
- Report Number(s):
- LLNL-JRNL-839025
Journal ID: ISSN 0029-5515
- Grant/Contract Number:
- AC05-00OR22725; FC02-04ER54698; AC02-09CH11466; AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Fusion
- Additional Journal Information:
- Journal Volume: 57; Journal Issue: 5; Journal ID: ISSN 0029-5515
- Publisher:
- IOP Science
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 3D transport; plasma response; boundary modeling
Citation Formats
Lore, Jeremy D., Wolfmeister, Alexis Briesemeister, Ferraro, Nathaniel M., Frerichs, Heinke, Lyons, B., McLean, A., Park, J.-K, and Shafer, Morgan W. Pedestal-to-Wall 3D Fluid Transport Simulations on DIII-D. United States: N. p., 2017.
Web. doi:10.1088/1741-4326/aa64ad.
Lore, Jeremy D., Wolfmeister, Alexis Briesemeister, Ferraro, Nathaniel M., Frerichs, Heinke, Lyons, B., McLean, A., Park, J.-K, & Shafer, Morgan W. Pedestal-to-Wall 3D Fluid Transport Simulations on DIII-D. United States. https://doi.org/10.1088/1741-4326/aa64ad
Lore, Jeremy D., Wolfmeister, Alexis Briesemeister, Ferraro, Nathaniel M., Frerichs, Heinke, Lyons, B., McLean, A., Park, J.-K, and Shafer, Morgan W. Thu .
"Pedestal-to-Wall 3D Fluid Transport Simulations on DIII-D". United States. https://doi.org/10.1088/1741-4326/aa64ad. https://www.osti.gov/servlets/purl/1364303.
@article{osti_1364303,
title = {Pedestal-to-Wall 3D Fluid Transport Simulations on DIII-D},
author = {Lore, Jeremy D. and Wolfmeister, Alexis Briesemeister and Ferraro, Nathaniel M. and Frerichs, Heinke and Lyons, B. and McLean, A. and Park, J.-K and Shafer, Morgan W.},
abstractNote = {The 3D fluid-plasma edge transport code EMC3-EIRENE is used to test several magnetic field models with and without plasma response against DIII-D experimental data for even and odd-parity n = 3 magnetic field perturbations. The field models include ideal and extended MHD equilibria, and the vacuum approximation. Plasma response is required to reduce the stochasticity in the pedestal region for even-parity fields, however too much screening suppresses the measured splitting of the downstream T-e profile. Odd-parity perturbations result in weak tearing and only small additional peaks in the downstream measurements. In this case plasma response is required to increase the size of the lobe structure. No single model is able to simultaneously reproduce the upstream and downstream characteristics for both odd and even-parity perturbations.},
doi = {10.1088/1741-4326/aa64ad},
journal = {Nuclear Fusion},
number = 5,
volume = 57,
place = {United States},
year = {Thu Mar 30 00:00:00 EDT 2017},
month = {Thu Mar 30 00:00:00 EDT 2017}
}
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Works referencing / citing this record:
Helical variation of density profiles and fluctuations in the tokamak pedestal with applied 3D fields and implications for confinement
journal, May 2018
- Wilcox, R. S.; Rhodes, T. L.; Shafer, M. W.
- Physics of Plasmas, Vol. 25, Issue 5