Modeling dynamic magnetically insulated transmission line flow in a transmission line code

A new fluid model including electron pressure is described for the electron flow layer in a magnetically insulated transmission line. Non-zero values of the electric field at the cathode are allowed so that the model can treat both emission and re-trapping of flow electrons. The model recovers previous results when the electric field at the cathode is taken to zero. The resulting generalized MITL flow equations are discussed and initial solutions are presented.