Results 21 to 30 of about 147,005 (295)
Estimation of Airship Aerodynamic Forces and Torques Using Extended Kalman Filter
IEEE Access, 2020 An airship is a lighter than air, aerial vehicle whose model is based on dynamic, aerodynamic, aerostatic and propulsion forces and torques. Apart from other, aerodynamic forces and toques are difficult to measure.
Muhammad Wasim, Ahsan Ali
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DronesThe integrated ducted structure significantly enhances the aerodynamic performance of the duct–rotor system, reducing noise and enhancing rotor safety. However, in the duct–rotor system, the coupled parameters of the rotor and the duct are crucial to its
Wei Wei +8 more
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Airfoil Robust Optimization Based on Convolutional Neural Network and Polynomial Chaos Method
Hangkong gongcheng jinzhan, 2021 In conventional airfoil optimization design method, the aerodynamic performance of the optimal airfoil can deteriorate at the non-design point, so it is necessary to study the airfoil robust optimization method.An airfoil robustness design method based ...
GAO Yuan +4 more
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Aerodynamic performance of scarf inlets [PDF]
17th Aerospace Sciences Meeting, 1979 A scarf inlet is characterized by having a longer lower lip than upper lip leading to both aerodynamic and acoustic advantages. Aerodynamically, a scarf inlet has higher angle of attack capability and is less likely to ingest foreign objects while the aircraft is on the ground.
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A computational assessment of the aerodynamic performance of a tilted Darrieus wind turbine [PDF]
, 2015 The aerodynamic performance of a Darrieus wind turbine operating with the rotation axis tilted with respect to the free-stream wind speed is investigated in this paper. An Unsteady Reynolds Averaged Navier Stokes (URANS) Computational Fluid Dynamics (CFD)
Bedon, Gabriele +2 more
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Applied Sciences, 2020 The coupled aerodynamic performance influence of multiple deviations in the blade profile is a complex phenomena. In this paper, a high-pressure compressor rotor blade mid-span profile is studied with the design of experiments (DOE), numerical simulation
Xianjun Yu +3 more
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Increasing L/D Ratio of Wing by Delaying Flow Separation for Better Aerodynamic Performance [PDF]
Journal of Applied Fluid MechanicsTo improve the aerodynamic efficiency of the aircraft, the article focuses on optimizing the L/D ratio through postponement of flow separation. Elevating the L/D ratio leads to diminished drag and delays stall occurrence at high angles of attack (α). The
L. P. Ramesh, V. Mugendiran, G. Sivaraj
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Influences of main design parameters on the aerodynamic performance of a micro-radial inflow turbine
AIP Advances, 2022 The micro-radial inflow turbine (MRIT) is not only an important component of a micro-gas turbine but also the core part of a vehicle exhaust gas turbocharger and a small-scale organic Rankine circulatory system.
Chao Li +4 more
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Taiyuan Ligong Daxue xuebao, 2021 For the aerodynamic layout selection of a long-endurance hydrogen energy hybrid unmanned aerial vehicle(UAV), this paper carried out a numerical simulation of aerodynamic characteristics for a certain design plan, in order to provide data support for the
Haiping TIAN +5 more
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Aerodynamic Performance of Two eVTOL Concepts [PDF]
, 2019 Today’s demand for urban mobility is constantly growing due to the demographic changes observed in metropolitan areas. New concepts such as electrical vertical take-off and landing (eVTOL) vehicles are currently emerging. Therefore an aerodynamic investigation of two eVTOL vehicle concepts is carried out to identify the advantages and disadvantages of ...
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