Poster

Benchmarking Hytrac Simulations of the Richtmeyer-Meshkov Instability at First Light Fusion

Author(s): M. P. Read, D. A. Chapman, N. Chaturvedi, T. Edwards, A. R. Fraser, N. A. Hawker, J. Herring, R. King, N. P.-L. Niasse, J. D. Pecover, D. H. Vassilev, A. Venskus and N. Joiner
Published: 2019
Event: 11th International Conference on Inertial Fusion Sciences and Applications

First Light Fusion is investigating projectile-driven inertial confinement fusion. The projectiles are driven to velocities of 10-20 km/s by electromagnetic launch on our pulsed power machine, M3. Hyper-velocity projectiles drive strong shocks across material interfaces in our targets. Therefore, the Richtmyer-Meshkov instability (RMI) may be an important factor in determining target performance. Modelling is performed using two in-house codes: Hytrac (2D AMR w/ front-tracking) and B (3D multimaterial resistive-MHD).

RMI benchmarking is important for:

1) validation of hydrodynamic models

2) assessing RMI impact on target designs

Our aim is to develop an RMI modelling capability valid over a range of target setups and suitable for reproducible continuous integration testing.

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