3D Modeling Tool for High Density and High Mach number Plasma Accelerator Research

78675S The DOE¿s Office of Fusion Energy Sciences has initiated the development of high-density, high-mach-number plasma jets for a variety of critical fusion applications, including fueling, driving rotation, and disruption mitigation in magnetic fusion devices. A numerical tool, that can comprehend and optimize the plasma in the plasma accelerator gun, is critically required to support this research. This project will develop a three-dimensional, hybrid, particle-in-cell code coupled to a fluid simulation tool to properly model the plasma and geometry of the accelerator. The hybrid code will accurately model accelerating plasma boundaries where both particle and fluid effects are important. In Phase I, an existing code, such as the LSP code, will be utilized to investigate plasma conditions in the accelerator that are needed to produce high speed jets with a higher efficiency. A preliminary optimization for a higher efficiency will be performed with simplified geometries, and necessary upgrades to the code will be identified. Commercial Applications and Other Benefits as described by the awardee: The three-dimensional hybrid simulation tool for plasma jet accelerator research should play a significant role in development of dense plasma jets for fusion applications. Furthermore, the tool should have applicability to the development of plasma thrusters for space propulsion for interplanetary travel.