Results 21 to 30 of about 735,591 (268)
Coverings of Configurations, Prime Configurations, and Orbiconfigurations
Revista Colombiana de Matemáticas, 2021 This exploratory paper considers the notion of a covering of a configuration and G-coverings which are coverings that are quotients under a semi-regular group action. We consider prime configurations, those which cannot G-cover other configurations, before considering orbiconfigurations.
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The Influence of Reynolds Number on Boundary Layer Development and Stall Characteristics of Airfoil
Hangkong gongcheng jinzhan, 2019 Airfoil stall and its boundary layer development are fundamental scientific issues in aircraft design. For the trailing edge stall airfoil, The transition model coupled the Mentor k -ω SST model with the disturbance amplification factor transport ...
Zhang Yanjun +3 more
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Analysis on Stealth Requirement of Next-generation Bomber in the Future
Hangkong gongcheng jinzhan, 2018 The long-range strategic bomber’s stealth performance and plan track strategic call more and more attention. By comparing the stealth performance of next generation stealth bombers developed by the United States and Russia and their faced threats, higher
Xu Dingguo +3 more
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Development of the Flush Air Data Sensing System
Hangkong gongcheng jinzhan, 2018 The accurate measurement of air data is critical for the navigation and flight control of vehicles. Comparing with the intrusive conventional air data measurement system, the flush air data sensing system is more suitable to hypersonic vehicles, stealth ...
Wang Zhen +3 more
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Study on Aerodynamic Shape Optimization for Wing of Business Jet
Hangkong gongcheng jinzhan, 2022 With the development of world economy and trade,the medium business jets are more favored by customers. In order to further improve the general aerodynamic performance of high-speed turbofan business jet,the optimization methods based on the full ...
MA Xiaoyong +6 more
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Identifikasi Gugus SiHx (x=1, 2 dan 3) pada Silikon Berpori dari Substrat Si (111) Tipe-P
Jurnal Fisika Flux, 2017 The study of identification of functional group SiHx (x=1, 2, 3) to typep Si (111) made by anodizatied silicon wafer in 0,3 ohm-cm hydrofluoric (HF) has been conducted.
I Nyoman Sudiana
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Hangkong gongcheng jinzhan, 2020 It is of great significance to investigate the mechanism of the propeller slipstream influence on the aerodynamic performance of the submerged inlet to keep the stability of the engine.
WANG Limin
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Aerodynamic and wind energy harvesting integrative design for UAVs
Kongqi donglixue xuebaoDynamic soaring, a special flight mode that enables unpowered long-distance flight by utilizing horizontal wind gradients, holds great potential for enhancing the range and endurance of unmanned aerial vehicles (UAVs).
Wei Wang +4 more
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The Art of Discrete and Applied Mathematics, 2021 Summary: There are 2036 configurations \((13_3)\). Here we establish that all of them are geometric; moreover, all have rational coordinatizations in the plane. This supports Grünbaum's conjecture that a geometric \((n_3)\) configuration always has a rational coordinatization.
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Drag Reduction Research on Fusion Winglet
Hangkong gongcheng jinzhan, 2018 Effectively decreasing induced drag is of important significance for the aircraft to reduce the fuel consumption and increase the flight range. Numerical simulation with CFD methods are carried out to obtain the aerodynamic characteristics, especially ...
Ma Yumin, Wei Jianlong
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