April 15-17

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Author: Francesca M Poli
Requested Type: Poster
Submitted: 2019-02-22 07:57:53

Co-authors: J. Breslau, M. Gorelenkova, J. Sachdev, X. Yuan, S. Kaye, N. Bertelli, N. Gorelenkov, M. Podestà

Contact Info:
Princeton Plasma Physics Laboratory
James Forrestal Campus
Princeton, NJ   08543
USA

Abstract Text:
Simulations aimed at full plasma discharge need to maintain a balance between physics fidelity and computational time. This is especially true when simulations are a basis for experiment preparation and results need to be available soon enough to be helpful and
usable, which is the basis behind the predictive-first approach for experimental planning.
Since its appearance over thirty years ago, TRANSP has evolved from a purely interpretive
model to a solver for predictive simulations, which integrates high fidelity models for heating and current drive sources, a free-boundary equilibrium solver and state-of-the-art transport and bootstrap current models (MMM, TGLF, NEO). Still, the path to a Whole Device Model (WDM) is long. The role of the ongoing SciDAC projects to develop, verify and validate reduced models for inclusion in time-dependent simulations is discussed, using TRANSP as a central element for a national effort on the development of an inclusive WDM for full discharge simulations. Examples include the integration of stability calculations for self-consistent analysis of anomalous fast ion transport induced by low-n MHD instabilities and by Alfvenic instabilities, synergy between RF waves and fast ions and the extension of transport calculations to the plasma facing components, including RF antenna structures and a 2D model for the Scrape-Off-Layer.

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