Advances in Thermodynamic Mixed Materials Modeling for Resistive MHD

There is continued interest in the modeling of mixed materials for a variety of high current plasma applications ranging from advanced current interrupters via high voltage fuses to high energy density applications, such as high-dose x-ray production via intense electron emission and inertial fusion energy via z-pinch technology.~ The challenge with mixed materials is the constituent components may be very small physically, requiring high spatial resolution to capture the individual materials.~ NumerEx has developed a means to build mixed material models from the constituent equations of state, allowing drastically reduced resolution while still retaining the sufficient fidelity for the thermodynamic behavior.~ We show the protocol for starting with ``microscopic'' simulations where the individual materials are resolved, and using these calculations to build a ``macroscopic'' EOS and resistivity tables of a mixed, homogenized material. We demonstrate a new V{\&}V technique for comparing thermodynamic properties between experimental results and mixed materials simulations.