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 language||English (US)|
|State||Published - Jan 1 1995|
|Event||26th Plasmadynamics and Lasers Conference, 1995 - San Diego, United States|
Duration: Jun 19 1995 → Jun 22 1995
|Other||26th Plasmadynamics and Lasers Conference, 1995|
|Period||6/19/95 → 6/22/95|
ASJC Scopus subject areas