수치해석을 이용한 추력기용 셔터 밸브 성능 분석

The Performance analysis of the shutter valve for a thruster is examined by using numerical method. The initial design of shutter shows not enough performance of thrust and shutter torque that are caused high pressure drop near the supersonic nozzle throat. 3 cases of modified shutter design are proposed. Numerical calculation results of these cases are studied in terms of the relation between shutter shape, thrust efficiency and shutter torque.