Poster

Demonstration of Numerical Capability at First Light Fusion

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

First Light Fusion has developed two fluid codes: Hytrac, a 2D Eulerian code with AMR and front-tracking and B, a 3D MHD code with volume of fluid interface tracking. Both codes included subcycled thermal conduction, FEOS equations of state and Lee-More transport.

Hytrac

• Architecture uses two grids: Eulerian grid on which the hydrodynamics equations are solved and a Lagrangian grid tracking fluid interfaces.

• Eulerian grid includes AMR, allowing simulations over a range of scales

• Grid update through exact or approximate Riemann solvers.

B

• 3D resistive MHD code, MHD equations subcycled within hydro solve.

• Volume of fluid method is cheap and simple, allowing arbitrary number of materials with some diffusion at interfaces.

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