An investigation into radial gradients in an eletrothermal plasma source using a semi 2-D approach

Summary form only given, as follows. Small aspect ratio capillary discharges (r/L≪0.5) are reasonably modeled using 0-D and 1-D, time dependent models and scaling laws¹. However, a 2-D, time dependent model would be more suitable when further details are needed on the gradients in the plasma parameters near the wall of the capillary, especially in applications where a larger diameter source is needed. It is also of importance to develop a 2-D model to better couple source models to large chamber or barrel models that require 2-D or 3-D treatment such as plasma flow in solid propellant charges in large chambers ¹.