The new model of fluid flow in the wire-arc-gun, with these heat sources, was run and
solved in FLUENT. The resultant velocity, pressure, temperature, and mass-flux density
contours are shown in Figure 3.22 and Figure 3.23. It can be observed that due to the increased
temperature, the supersonic shockwave effects have subsided. This is mainly because the speed
of sound increases with the square root of temperature, and therefore Mach number decreases
substantially when arc-heating is considered.