MONKES: a fast neoclassical code for the evaluation of monoenergetic transport coefficients in stellarator plasmas

Escoto, F. J.; Velasco, J. L.; Calvo, I.; Landreman, M.; Parra, F. I.

doi:10.1088/1741-4326/ad3fc9

MONKES: a fast neoclassical code for the evaluation of monoenergetic transport coefficients in stellarator plasmas

Journal Article · Mon Jun 03 00:00:00 EDT 2024 · Nuclear Fusion

DOI:https://doi.org/10.1088/1741-4326/ad3fc9· OSTI ID:2369835

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Abstract

MONKES is a new neoclassical code for the evaluation of monoenergetic transport coefficients in stellarators. By means of a convergence study and benchmarks with other codes, it is shown that MONKES is accurate and efficient. The combination of spectral discretization in spatial and velocity coordinates with block sparsity allows MONKES to compute monoenergetic coefficients at low collisionality, in a single core, in approximately one minute. MONKES is sufficiently fast to be integrated into stellarator optimization codes for direct optimization of the bootstrap current and to be included in predictive transport suites. The code and data from this paper are available at https://github.com/JavierEscoto/MONKES/ .

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); University of Maryland, College Park, MD (United States)

Sponsoring Organization:: EUROfusion Consortium; Ministerio de Ciencia e Innovación; USDOE; USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC02-09CH11466; FG02-93ER54197

OSTI ID:: 2369835

Alternate ID(s):: OSTI ID: 2337992
OSTI ID: 2403055
OSTI ID: 2406031

Journal Information:: Nuclear Fusion, Journal Name: Nuclear Fusion Journal Issue: 7 Vol. 64; ISSN 0029-5515

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: IAEA

Language:: English

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY
bootstrap current
neoclassical transport
stellarator optimization

MONKES: a fast neoclassical code for the evaluation of monoenergetic transport coefficients in stellarator plasmas

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