Plasma Physics (Physics/ECE/NE 922) Seminars

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Events on Monday, October 5th, 2020

Core transport model validation towards building the physics basis for the SPARC tokamak
Time: 12:00 pm
Place: Zoom Meeting
Speaker: Pablo Rodriguez-Fernandez, Massachusetts Institute of Technology
Abstract: The validation of turbulent transport simulations and integrated modeling frameworks is essential for the design of fusion devices that operate in unexplored burning plasma regimes. This talk presents work devoted to understanding the validity of the local transport approximation, widely used in current predictive frameworks. Cold-pulse experiments have long been considered strong evidence of the existence of dominant non-local effects in the core of tokamak plasmas, suggesting that the core transport models used to predict burning plasmas in SPARC and ITER would need to be revisited from the ground up. This work demonstrates that the complete behavior of such experiments can be recovered by a fully local turbulent transport model, as long as multi-channel stiff transport is considered. This provides confidence in the predictions of SPARC performance, revealing an ample margin to net fusion gain in a medium-size tokamak.

PAUL W TERRY is inviting you to a scheduled Zoom meeting.

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Meeting ID: 991 5610 7574
Passcode: 883688

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Meeting ID: 991 5610 7574
Passcode: 883688
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