Whole-Device Modeling of the FuZE Device

Simulations of the sheared-flow-stabilized (SFS) Z-pinch device (FuZE) aid experimental efforts by contributing to interpretation of diagnostic data as well as providing predictive capability needed for continuing design work. Current work focuses on leveraging magnetohydrodynamics (MHD) to perform whole-device modeling using the WARPXM finite-element code for cases of FuZE shots up to 500 kA with an initial slug of plasma as well as injection of a plasma source. This provides a relatively computationally inexpensive way to understand the plasma dynamics in the device. Connection with experiment is made through the development of synthetic diagnostics which can be compared to corresponding efforts on the actual device. These include the calculation of line-integrated densities for comparison with interferometry, magnetic field measurements along the outer electrode for comparison with Bdot probe data, Bremsstrahlung radiation for comparison with X-ray detectors, and neutron yield calculations for comparison with scintillator data. A circuit model will also be implemented to match the current profiles seen in the experiment. Simulation results including diagnostic comparisons will be presented.