Numerical simulation of air leakage in a space station based on computational fluid dynamics DOI Open Access
L. Q. Luo, Xiaoliang Yang, R N Li

et al.

Journal of Physics Conference Series, Journal Year: 2025, Volume and Issue: 2977(1), P. 012056 - 012056

Published: March 1, 2025

Abstract This study conducted a numerical simulation of the gas leakage process in space station based on thermodynamic and fluid dynamic models, aiming to explore variations pressure temperature under different leak aperture conditions. The research first established mathematical model describing inside station, assumptions ideal behavior uniform distribution. It introduced effects adiabatic expansion radiative cooling, constructing system differential equations for changes. Through solutions ANSYS simulations, analyzed characteristics changes during initial later stages detail. results indicated that rapidly decreased early subsequently stabilized. employed sonic subsonic flow models accurately describe apertures, ensuring stability accuracy through adaptive time steps anomaly corrections. Ultimately, comparison model’s predicted with showed good agreement, providing theoretical support effective methods airtight design spacecraft safety assessments leaks extreme

Language: Английский

Optimized modal decomposition techniques for robust leakage detection in noisy environments: A comparative study DOI
Jialin Cui, Xianqiang Qu, Chunwang Lv

et al.

Measurement, Journal Year: 2025, Volume and Issue: unknown, P. 117390 - 117390

Published: March 1, 2025

Citations

0
Numerical simulation of air leakage in a space station based on computational fluid dynamics DOI Open Access
L. Q. Luo, Xiaoliang Yang, R N Li

et al.

Journal of Physics Conference Series, Journal Year: 2025, Volume and Issue: 2977(1), P. 012056 - 012056

Published: March 1, 2025

Abstract This study conducted a numerical simulation of the gas leakage process in space station based on thermodynamic and fluid dynamic models, aiming to explore variations pressure temperature under different leak aperture conditions. The research first established mathematical model describing inside station, assumptions ideal behavior uniform distribution. It introduced effects adiabatic expansion radiative cooling, constructing system differential equations for changes. Through solutions ANSYS simulations, analyzed characteristics changes during initial later stages detail. results indicated that rapidly decreased early subsequently stabilized. employed sonic subsonic flow models accurately describe apertures, ensuring stability accuracy through adaptive time steps anomaly corrections. Ultimately, comparison model’s predicted with showed good agreement, providing theoretical support effective methods airtight design spacecraft safety assessments leaks extreme

Language: Английский

Citations

0