A plasmadynamics model for nonequilibrium processes in N2/H2 arcjets

Thomas W. Megli, Herman Krier, Rodney L. Burton

Research output: Contribution to conferencePaper


A general, two-dimensional, steady, non-LTE (local thermodynamic equilibrium) model is presented for nitrogen/hydrogen arcjet thrusters. Both thermal and chemical nonequilibrium processes are incorporated to describe a multi-temperature, multispecies N2/H2 plasma. The current and anode temperature distributions are fully coupled to the plasma flowfield with realistic boundary conditions. Thermal nonequilibrium, chemical equilibrium results are presented for simulated hydrazine. Results for both thermal and chemical nonequilibrium hydrazine and hydrogen arejets show significant thermal nonequilibrium near the anode, and high frozen flow losses. It is concluded that nonequilibrium chemistry models are necessary to capture accurately the interior distributions of the plasma flowfield.

Original languageEnglish (US)
StatePublished - Jan 1 1995
Event26th Plasmadynamics and Lasers Conference, 1995 - San Diego, United States
Duration: Jun 19 1995Jun 22 1995


Other26th Plasmadynamics and Lasers Conference, 1995
CountryUnited States
CitySan Diego


ASJC Scopus subject areas

  • Engineering(all)

Cite this

Megli, T. W., Krier, H., & Burton, R. L. (1995). A plasmadynamics model for nonequilibrium processes in N2/H2 arcjets. Paper presented at 26th Plasmadynamics and Lasers Conference, 1995, San Diego, United States.