Results 31 to 40 of about 2,575 (186)
Aerospace, 2022 In order to improve the thermal protection performance of the active thermal protection system (TPS) based on the spike and jet, an adjustable non-ablative thermal protection system, of which the spike can be rotated in the direction of the free stream ...
Bin Chang, Jie Huang, Wei-Xing Yao
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Advanced Science, EarlyView.Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang +5 more
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Deep transfer learning for three-dimensional aerodynamic pressure prediction under data scarcity
Theoretical and Applied Mechanics LettersAerodynamic evaluation under multi-condition is indispensable for the design of aircraft, and the requirement for mass data still means a high cost. To address this problem, we propose a novel point-cloud multi-condition aerodynamics transfer learning ...
Hao Zhang +4 more
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The Effect of Fuel Injection on the Combustion Characteristics of Gas-Solid Two-Phase Gas [PDF]
Hangkong bingqiFuel injection significantly affects the combustion characteristics of gas-solid two-phase gas in solid rocket scramjet. The effects of fuel equivalent ratio and fuel injection port arrangement on the combustion characteristics of gas-solid two-phase gas
Zhao Libei, Ma Likun, Xia Zhixun, Feng Yunchao, Chen Binbin, Liu Yandong
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Study on Trajectory Optimization of Hypersonic Vehicle Based on Neural Network
Frontiers in Energy Research, 2022 For the horizontal take-off hypersonic cruise aircraft, research on the combined design method of multi-section was carried out, the main design parameters of different sections were analyzed, the parametric design model of the flight path was ...
Feichao Cai, Xing Huang
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Advanced Science, EarlyView.Green mechanochemical copolymerization was developed for universal interfacial modification of Group 13 and related fillers. By leveraging Lewis acid–base coordination to anchor sulfur‐containing polymers—validated via multiscale characterization and DFT—this versatile method boosts performance across liquid fuels, thermal‐shielding materials, and ...
Chen Wang +7 more
wiley +1 more source
Performance modeling of flame-assisted fuel cells based on a swirl burner
AIP AdvancesAiming at the problems of a narrow operating range and complex modeling of Flame-assisted Fuel Cells (FFCs), an FFC system based on a swirl burner is proposed, and neural network algorithms are used to construct the prediction model for the polarization ...
Yiming Liu +4 more
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Applied SciencesCompressor characteristic evaluation is a critical step in design and optimization. Corrected characteristic curves are typically derived via experimental testing or CFD computation which is typically executed through manual manipulation. For compressors
Junbing Liu, Xiaoqiang Fan, Xiao Tang
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Journal of Thermal Science and Technology, 2020 High-enthalpy dissociating aerodynamic environment during high-speed spacecraft entries brings new challenges to the prediction of heat transfer characteristics on the surface of thermal protection system.
Xiaofeng YANG +5 more
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Assessment of Radiative Heating for Hypersonic Earth Reentry Using Nongray Step Models
Aerospace, 2022 Accurate prediction of the aerothermal environment is of great significance to space exploration and return missions. The canonical Fire II trajectory points are simulated to investigate the radiative transfer in the shock layer for Earth reentry at ...
Xinglian Yang +3 more
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