We will continue with our Seminar Series on January 24th, 2024
On site: Salón de Grados Leganés
For the next event in the Aerospace PhD Seminar Series, we will have the pleasure of hosting Dr. Luis Chacón, researcher at Los Alamos National Laboratory (LANL).
The event will take place in the Salón de Grados on Wednesday, January 24th at 1pm and will be streamed (Online).
Dr. Luis Chacón is a recipient of the 2021 Ernest O. Lawrence DOE Award, a Fellow of the American Physical Society since 2020, and a Senior Scientist in the Theoretical Division at Los Alamos National Laboratory (LANL) since 2012. Dr. Chacón received an MS degree in Industrial Engineering from the Polytechnic University of Madrid (UPM) in 1994, MS and PhD degrees in Nuclear Engineering from the University of Illinois at Urbana-Champaign in 1998 and 2000, respectively, and a PhD degree from UPM in 2001. He joined the Theoretical Division at LANL as a Director’s Postdoctoral Fellow in 2000, becoming a Staff Member in 2002. Dr. Chacón later joined the Fusion Energy Division at Oak Ridge National Laboratory in 2008, returning to LANL in 2012. His research focuses on multiscale algorithm development for fluid and kinetic modeling of plasmas, with applications to basic plasmas, inertial confinement fusion, and magnetic fusion, resulting in 128 publications that have been cited about 4600 times. Dr. Chacón has been an Associate and Executive Editor in the Journal of Computational Physics from 2013-2022 and 2015-2021, respectively, and several times Guest Editor in the SIAM Journal of Scientific Computing since 2016. Dr. Chacón has organized numerous conferences and workshops, including the International Sherwood Fusion Theory Conference (Chair, 2011-12), the Copper Mountain Meeting on Iterative Methods (Scientific Committee member since 2016), the Kinetic Effects in Inertial Confinement Fusion Workshop (co-Chair, 2018), the International Conference of Numerical Simulation of Plasmas (Chair, 2019), and the Joint Institute for Fusion Theory US-Japan Workshop on Multiscale Simulation of Plasmas (US co-Chair, 2019).
“Modern implicit algorithms for multiscale kinetic plasma simulation for fusion applications”
Abstract:
Plasma systems are notoriously multiscale temporally and spatially, and very difficult to model accurately when collisional processes are subdominant. Such conditions are pervasive, for instance, in thermonuclear fusion plasmas. To simulate such plasma conditions with high fidelity, one must solve the so-called Vlasov-Fokker-Planck (VFP) equations (or suitable approximations thereof), coupled with Maxwell’s equations. The VFP+Maxwell system is a high-dimensional (6D+time), integro-differential, nonlinear, nonlocal set of equations describing multiple plasma species interacting collisionally and via electromagnetic fields. The solution to the VFP system is constrained by positivity and collisional invariants (mass, momentum, and energy), which must be respected by the numerical representation for long-term solution accuracy. The VFP model admits myriad asymptotic approximations that lead to useful reduced models in certain limits. In this presentation, we will introduce the challenges in simulating fusion-grade plasmas, outline various algorithmic solutions to these challenges (exploiting, in particular, the asymptotic richness of the VFP system), and dive into modern implicit multiscale methods with applications to both magnetic and inertial confinement fusion simulations.
The seminars will begin at 1pm and will take place in the Auditorium Salón de Grados (Padre Soler)
No previous registration is required.
PhD in Aerospace Engineering UC3M 