首页|Mechanism of capture section affecting an intake for atmosphere-breathing electric propulsion

Mechanism of capture section affecting an intake for atmosphere-breathing electric propulsion

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Atmosphere-Breathing Electric Propulsion(ABEP)can compensate for lost momentum of spacecraft operating in Very Low Earth Orbit(VLEO)which has been widely concerned due to its excellent commercial potential.It is a key technology to improve the capture efficiency of intakes,which collect and compress the atmosphere for ABEP.In this paper,the mechanism of the capture section affecting capture efficiency is investigated by Test Particle Monte Carlo(TPMC)simulations with 3D intake models.The inner surface smoothness and average collision number are determined to be key factors affecting capture efficiency,and a negative effect growth model is accordingly established.When the inner surface smoothness is less than 0.2,the highest capture effi-ciency and its corresponding average collision number interval are independent of the capture sec-tion's geometry and its mesh size.When the inner surface smoothness is higher than 0.2,the capture efficiency will decrease by installing any capture section.Based on the present results,the manufac-turing process and material selection are suggested to be prioritized during the intake geometry design in engineering projects.Then,the highest capture efficiency can be achieved by adjusting the length and mesh size of the capture section.

Atmosphere-breathing elec-tric propulsionCapture efficiencyCapture sectionIntakeTest particle Monte CarloVery low earth orbit

Siyuan ZHANG、Jinyuan YANG、Cheng LI、Haolin LI、Liwei ZHANG、Liang DING、Anbang SUN

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State Key Laboratory of Electrical Insulation and Power Equipment,School of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049,China

China Academy of Aerospace Science and Innovation,Beijing 100049,China

auspices of the National Key R&D Program of ChinaNational Natural Science Foundation of ChinaState Key Laboratory of Electrical Insulation and Power Equipment,ChinaHPC Platform,Xi'an Jiaotong University,China

2020YFC220110052077169EIPE22116

2024

10.1016/j.cja.2023.07.037

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(1)
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