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Center for Nonlinear Studies |
The extreme conditions that arise in flows such as inertial confinement fusion experimentsare continuously challenging computational models. From large fluid instabilities to atomisticeffects such as phase transitions, the success of the models relies on a vast range of lengthand time scales. Our work investigates the integration across scales to capture the influenceof molecular behavior on hydrodynamic flows. We present two approaches that concurrentlycouple macroscopic solvers to atomistic simulations, such as molecular dynamics. We discusstheir accuracy, performance and applicability compared to conventional methods.Leveraging high-performance computing architectures, we show how large spatial domainsas well as long time durations can be achieved. Our methods contribute substantially to theeffort of gaining first-principle insight into the material behavior of hydrodynamic models.
Bio: Tim Linke’s work explores the advantages of multiscale methods in fluid dynamics. Hismethods are particularly important in modeling extreme conditions such as those found ininertial confinement fusion experiments, and hypersonic flows. Tim is a PhD candidate inMechanical and Aerospace Engineering at the University of California, Davis and recipient ofthe Presidential fellowship at the Lawrence Livermore National Laboratory. Prior to joiningLLNL as a doctoral collaborator, he obtained a Master of Science at the University ofCalifornia, Davis and a Bachelor of Science at the Technical University of Munich, Germany
Host: Joshua Finkelstein (T-1)