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Moving to Address the Curse of Dimensionality to Enable ‘First Principle’ Optimal Design in Fusion Systems

March 22, 2023 @ 15:30 - 16:30

The seminar will be web-simulcast via Zoom:
https://umich.zoom.us/j/91810335233
Passcode: MIPSE
Recent advances at the National Ignition Facility (NIF) and their achievement of thermal nuclear burn represents an exciting advancement in fusion energy systems. A close synergy between simulation, theory, and experiment, (including data assimilation) led to this advance. However, if we were to design a new device at a new operating point outside parameters covered by the experiments, we lack the ‘first principle’ predictive capabilities that enable such a design. This is because inertial and magnetically confined fusion systems are far from an equilibrium state and can span many plasma regimes Behind all of these challenges in building ‘first principle’ models is dimensionality.
To address this challenge, the Center for Hierarchical and Robust Modeling of Non-Equilibrium Transport (CHaRMNET) was created. CHaRMNET, a DoE Mathematical Multifaceted Integrated Capability Center, will develop mathematical tools that enable ‘first principle’ effects within the design loop of fusion energy systems. CHaRMNET will exploit structure within models to mitigate the challenges of dimensionality and to bridge wide ranges of length and time scales in plasma science. The challenge of dimensionality is pervasive throughout computational science and refers to the observation that the resources to solve a problem on a computer scale exponentially with the dimensions. Fundamental plasma models are 7-dimensional and are presently computationally intractable for the engineering scale of plasma systems. In this talk, I will give an overview of the various thrusts in CHaRMNET to address this challenge, with a focus on Multi-Scale Modeling.
Speaker(s): Dr. Andrew Christlieb,
Agenda:
3:30 pm Introduction
3;35 pm Start of talk
4:30 pm event ends
ALL times are in EST/EDT
Room: 133, Bldg: Chrysler Center, 2121 Bonisteel Blvd, University of Michigan, Ann Arbor, Michigan, United States, 48109, Virtual: https://events.vtools.ieee.org/m/349694