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The Thermalization Verification Problem for EMPIRE-PIC and EMPIRE-Fluid

Shields, Sidney S.; Jensen, Daniel S.; Medina, Brandon M.; Powell, Troy C.; Pointon, Timothy D.; Moore, Christopher H.

We report on the verification of elastic collisions in EMPIRE-PIC and EMPIRE-Fluid in support of the ATDM L2 V&V Milestone. The thermalization verification problem and the theory behind it is presented along with an analytic solution for the temperature of each species over time. The problem is run with both codes under multiple parameter regimes. The temperature over time is compared between the two codes and the theoretical results. A preliminary convergence analysis is performed on the results from EMPIRE-PIC and EMPIRE-Fluid showing the rate at which the codes converge to the analytic solution in time (EMPIRE-Fluid) and particles (EMPIRE-PIC).

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15 Results
15 Results