Gas dynamic model of electrothermal thrusters of small spacecraft and possibility of applying microwave heating of a working

[摘要] This paper is devoted to development and approbation of the gas dynamic model of ammonia thruster with low power consumption and ultra small thrust for picosatellite weighing up to 5 kg and possibility of applying microwave heating of a working fluid. It is shown, that simplest electrothermal thruster consisting of propellant tank, solenoid valve, expension cavity and heating chamber can provide ultra small trust due to gas dynamic processes and small heat supply. The results of the study set tasks for further design of small spacecrafts microwave generators.

[发布机构] Omsk State Technical University, Mira ave., 11, Omsk; 644050, Russia^1

[效力级别] 物理学 [学科分类] 力学，机械学

[关键词] Electrothermal thrusters;Gas dynamic process;Heating chambers;Low-power consumption;Microwave generators;Picosatellite;Propellant tank;Small spacecrafts