Results 31 to 40 of about 10,032 (211)
A Grid Fusion Lifting Surface and Its Flow Control Mechanism at High Angles of Attack
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 A grid fusion lifting surface suitable for large subsonic angles of attack was designed. The influence of the grid position, grid diversion angle, and grid number on the aerodynamic performance of the grid fusion lifting surface under subsonic conditions was studied by numerical simulations.
Fan Hua-yu +4 more
wiley +1 more source
Experimental study of laminar separation phenomenon combining with numerical calculations
Vietnam Journal of Mechanics, 2011 The separation is much more sensitive for laminar flow than for turbulent flow. These remarks have been attested for both subsonic and supersonic flows.
Nguyen Manh Hung, Hoang Thi Bich Ngoc
doaj +1 more source
Use of Active Learning to Design Wind Tunnel Runs for Unsteady Cavity Pressure Measurements
International Journal of Aerospace Engineering, 2014 Wind tunnel tests to measure unsteady cavity flow pressure measurements can be expensive, lengthy, and tedious. In this work, the feasibility of an active machine learning technique to design wind tunnel runs using proxy data is tested.
Ankur Srivastava, Andrew J. Meade
doaj +1 more source
Numerical analysis of transonic flow over the FFA-W3-211 wind turbine tip airfoil [PDF]
Wind Energy ScienceModern wind turbines are the largest rotating machines ever built, with blade lengths exceeding 100 m. Previous studies demonstrated how the flow around the tip airfoils of such large machines reaches local flow Mach numbers (Ma), at which the ...
M. C. Vitulano +4 more
doaj +1 more source
Aerodynamic characteristics and fuze arming time determination of anti-armour aviation bomb [PDF]
Scientific Technical Review, 2015 Aerodynamic coefficients of the anti-armour aviation bomb (AAAB) are determined in subsonic and transonic flow field regimes in the wind tunnel. These flow conditions directly affect the fuze arming mechanism time of the bomb. An alternative and reliable
Novaković Zoran +2 more
doaj
Development of air exchanging system for subsonic wind tunnel
Journal of Physics: Conference Series, 2018 The study analyzes main ways of air flow cooling in closed-circuit wind tunnels (subsonic and transonic): subject to air exchange (continuous partial exhaust of warm air and its change for colder outside air) and by means of the use of liquid-coolant ...
A. S. Rtishcheva
semanticscholar +1 more source
Heat Transfer, Volume 54, Issue 5, Page 3193-3207, July 2025.ABSTRACT High‐pressure turbine blade tips operate under extreme thermal stress, generating significant aerodynamic losses that must be continually optimized to improve engine efficiency and durability. This study uses computational fluid dynamics (CFD) to investigate the aerodynamic and thermal behavior of advanced turbine blade tip configurations ...
Kheir‐Eddine Arrif +2 more
wiley +1 more source
Vojnotehnički Glasnik, 2016 Aerotunelska ispitivanja protivoklopne avio-bombe (PTAB) se vrše se da bi se odredili aerodinamički koeficijenti u režimima podzvučnog i transoničnog strujanja.
Zoran Đ. Novaković
doaj +1 more source
International Journal of Energy Research, Volume 2025, Issue 1, 2025.With the development of high‐performance computing and advanced experimental methods, data‐driven machine learning, especially neural network technology, has shown great potential in fluid mechanics research and has become a fourth paradigm research tool.
Chen Qi +6 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.Background: Electromagnetic flow control is crucial in hypersonic gas dynamics, with key aspects of boundary layer electromagnetic flow control reviewed, focusing on numerical methods, simulations, and experimental research. Numerical Methods: Challenges such as numerical stiffness and instability arise from the coupling of electromagnetic fields with ...
Yang Du, Jun Liu, Hao Chen
wiley +1 more source