TY - GEN
T1 - TEMPERATURE FLIED RAPID ESTIMATION OF SPACE NUCLEAR THERMIONIC REACTOR BASED ON REDUCED-ORDER MODEL
AU - Liu, Shuo
AU - Wang, Chenglong
AU - Qiu, Suizheng
AU - Tian, Wenxi
AU - Su, Guanghui
N1 - Publisher Copyright:
© 2024 by ASME.
PY - 2024
Y1 - 2024
N2 - In order to overcome the shortcomings of Computational Fluid Dynamics (CFD), which needs to consume a lot of computational resources and time to obtain the flow field information. In this paper, a non-intrusive reduced-order model was developed based on the POD an BP neural network. Then the established ROM was applied in the temperature filed rapid estimation of the space thermionic reactor, TOPAZ-II. ANSYS Fluent are used to obtain the data snapshot samples of the temperature field of TOPAZ-II. Under the new operating conditions, the temperature field was rapidly reconstructed by training-completed ROM. The ROM was validated by comparing the ROM results with Fluent results. The maximum absolute error of temperature is 0.2 K with speed-up on the order 4.8 × 103. Therefore, the methodology in this paper provides a reference for real-time monitoring of the thermionic reactor operation in orbit.
AB - In order to overcome the shortcomings of Computational Fluid Dynamics (CFD), which needs to consume a lot of computational resources and time to obtain the flow field information. In this paper, a non-intrusive reduced-order model was developed based on the POD an BP neural network. Then the established ROM was applied in the temperature filed rapid estimation of the space thermionic reactor, TOPAZ-II. ANSYS Fluent are used to obtain the data snapshot samples of the temperature field of TOPAZ-II. Under the new operating conditions, the temperature field was rapidly reconstructed by training-completed ROM. The ROM was validated by comparing the ROM results with Fluent results. The maximum absolute error of temperature is 0.2 K with speed-up on the order 4.8 × 103. Therefore, the methodology in this paper provides a reference for real-time monitoring of the thermionic reactor operation in orbit.
KW - Proper orthogonal decomposition (POD)
KW - Rapid estimation
KW - Reduced-order model(ROM)
KW - Space Nuclear Thermionic Reactor
KW - Temperature field
UR - https://www.scopus.com/pages/publications/85209227449
U2 - 10.1115/ICONE31-134267
DO - 10.1115/ICONE31-134267
M3 - 会议稿件
AN - SCOPUS:85209227449
T3 - Proceedings of 2024 31st International Conference on Nuclear Engineering, ICONE 2024
BT - Thermal-Hydraulics and Safety Analysis
PB - American Society of Mechanical Engineers (ASME)
T2 - 2024 31st International Conference on Nuclear Engineering, ICONE 2024
Y2 - 4 August 2024 through 8 August 2024
ER -