Effects of the Wall Temperature on Rarefied Gas Flows and Heat Transfer in a Micro-Nozzle

Autor: Shurui Zhang, Yong Li, Xudong Wang, Songcai Lu, Yusong Yu, Jun Yang

Publikováno v: Micromachines, Vol 15, Iss 1, p 22 (2023)

When the satellite is in orbit, the thruster will experience drastic temperature changes (100–1000 K) under solar radiation, which will affect the rarefied gas flow state in the micro-nozzle structure of the cold gas micro-thruster. In this study,

Externí odkaz: https://doaj.org/article/dec895d9bae44027bf5910e10a328350

DSMC Simulation of the Effect of Needle Valve Opening Ratio on the Rarefied Gas Flows inside a Micronozzle with a Large Length-to-Diameter Ratio

Autor: Xudong Wang, Yong Li, Yong Gao, Chenguang Gao, Weichun Fu

Publikováno v: Aerospace, Vol 10, Iss 2, p 126 (2023)

The cold gas micro-propulsion system can provide low noise and ultra-high accuracy thrust for satellite platforms for space gravitational wave detection, high-precision earth gravity field measurement. In this study, the effect of different needle va

Externí odkaz: https://doaj.org/article/3a41bc2b6a524b9e8e81db905ed6158d

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Effects of the Wall Temperature on Rarefied Gas Flows and Heat Transfer in a Micro-Nozzle.

Autor: Zhang S; Hydrogen Energy and Space Propulsion Laboratory (HESPL), School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China., Li Y; Beijing Institute of Control Engineering, Beijing 100190, China., Wang X; Beijing Institute of Control Engineering, Beijing 100190, China., Lu S; Beijing Institute of Control Engineering, Beijing 100190, China., Yu Y; Hydrogen Energy and Space Propulsion Laboratory (HESPL), School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China., Yang J; Changcheng Institute of Metrology and Measurement, Beijing 100095, China.

Publikováno v: Micromachines [Micromachines (Basel)] 2023 Dec 22; Vol. 15 (1). Date of Electronic Publication: 2023 Dec 22.