Geometric Design of a Low-Power Arcjet Constrictor and Determination of Velocity of Air-Based Plasma by Means of Analytical and Numerical Methods

The following research focuses on the analytical and numerical study of an arcjet constrictor. In order to perform these analyses, a geometric design constrictor was proposed. considers mathematical models proposed by Stine Watson, related properties air propellants, such as specific enthalpy, electric conductivity, thermal heat. considered equations for mass, momentum, energy, electricity that describe interaction between arc fluid flow. These were solved in ANSYS FLUENT software, which κ-ϵ turbulence magnetohydrodynamic (MHD) used. external routines, including user-defined functions, scalars, memory implemented C++ language source terms linked FLUENT. velocity profiles obtained analytically temperatures 9000 K, 10,000 11,000 K with peak magnitudes 2960 m/s, 3350 3100 respectively, at outlet It observed from results magnitude air-based plasma inside increases temperature rises up However, above decreases because this level, particles become completely ionized, heat decreases. simulation produced profile two different (9000 K) 2400 m/s 2900 very close error 16.327%.