Combined Analysis of Thruster Plume Behavior in Rarefied Region by Preconditioned Navier-Stokes and DSMC Methods
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概要
- 論文の詳細を見る
Satellite attitude is usually controlled by plume exhaust from thrusters into the vacuum of space. To study the plume effects in the highly rarefied region, the Direct Simulation Monte Carlo (DSMC) method is usually used, because the plume flow field contains the entire range of flow regime from the near-continuum near the nozzle exit through the transitional state to free molecular state at the far field region from the nozzle. The purpose of this study is to investigate the behavior of a small monopropellant thruster plume in the vacuum region numerically by using the DSMC method. To obtain more accurate results, the preconditioned Navier-Stokes algorithm is introduced to calculate continuum flow fields inside the thruster to predict nozzle exit properties, which are used for inlet conditions of DSMC method. As a result, the plume characteristics in the highly rarefied flow, such as strong nonequilibrium near nozzle exit, large back flow region, etc., are investigated.
- 社団法人 日本航空宇宙学会の論文
- 2009-11-04
著者
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Baek Seung
Department Of Aerospace Engineering Korea Advanced Institute Of Science And Technology
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Lee Sung
Department Of Aerospace Engineering Korea Advanced Institute Of Science And Technology
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LEE Kyun
Satellite Thermal & Propulsion Department, Korea Aerospace Research Institute
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YU Myoung
Satellite Thermal & Propulsion Department, Korea Aerospace Research Institute
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KIM Su
Satellite Thermal & Propulsion Department, Korea Aerospace Research Institute
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Yu Myoung
Satellite Thermal & Propulsion Department Korea Aerospace Research Institute
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Lee Kyun
Satellite Thermal & Propulsion Department Korea Aerospace Research Institute
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Kim Su
Satellite Thermal & Propulsion Department Korea Aerospace Research Institute
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