Results 11 to 20 of about 10,509 (314)
THE AERODYNAMIC CHRACTERISTICS CALCULATION METHODOLOGY OF TWO-SHELL PARAGLIDERS
Научный вестник МГТУ ГА, 2018 Currently, two-shell paragliders (TSP) find a sufficiently wide application, including the solution of transport problems. A two-shell paraglider is a soft wing, the form of which is supported by the high-speed pressure in the stream and it is a complex ...
V. V. Ovchinnicov, Yu. V. Petrov
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CFD calculations of S809 aerodynamic characteristics [PDF]
35th Aerospace Sciences Meeting and Exhibit, 1997 Steady-state, two-dimensional CFD calculations were made for the S809 laminar-flow, wind-turbine airfoil using the commercial code CFD-ACE. Comparisons of the computed pressure and aerodynamic coefficients were made with wind tunnel data from the Delft University 1.8 m x 1.25 m low-turbulence wind tunnel.
Walter Wolfe +3 more
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ZONING OF EXHAUST GRAVITATIONAL VENTILATION SYSTEMS IN RESIDENTIAL BUILDINGS
Вестник Дагестанского государственного технического университета: Технические науки, 2018 . Objectives The article is devoted to an analysis of the systems of supply and exhaust ventilation in mass-constructed residential buildings with the purpose of justifying the need for separation of gravitational exhaust ventilation systems into zones ...
Kaminat M. Agakhanova
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Step-by-Step Numerical Prediction of Aerodynamic Noise Generated by High Speed Trains
Chinese Journal of Mechanical Engineering, 2022 In this paper, the unsteady flow around a high-speed train is numerically simulated by detached eddy simulation method (DES), and the far-field noise is predicted using the Ffowcs Williams-Hawkings (FW-H) acoustic model.
Tian Li +3 more
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Identify aerodynamic derivatives of the airplane attitude channel using a spiking neural network
International Journal of Aviation, Aeronautics, and Aerospace, 2020 The paper proposes a method for identifying aerodynamic coefficient derivatives of aircraft attitude channel using spiking neural network (SNN) and Gauss-Newton algorithm based on data obtained from actual flights. Using SNN combination with Gauss-Newton
Nguyen Quang VInh +3 more
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Vehicles, 2023 Modern power engine concepts and environmental restrictions demand oil-free lubrication of rotors, for example, by gas bearings. However, the stiffness and damping properties ruling the rotor’s dynamics are poorly documented for aerodynamic bearings and ...
Katrin Baumann, Hermann Freund
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Research on Wind Tunnel Test of Aerodynamic Characteristics of Missile under Subtransonic Velocity
Hangkong gongcheng jinzhan, 2020 In the process of missile design, the aerodynamic characteristics of missile as an important factor directly affect the dynamic quality of missile flight. In the case of severe nonlinearity of aerodynamic characteristics in subsonic and transonic regions,
PENG Bo, CEN Mengxi
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Evaluation Method of UAV Manufacturing Deviation on Its Aerodynamic Characteristics
Hangkong gongcheng jinzhan, 2018 Aerodynamic shape is very important to UAV. It is necessary to estimate UAV manufacturing deviation on its aerodynamic shape. The point cloud data of manufacturing shape of UAV can be measured by digital photogrammetric system. With the reference of nose,
Bao Xiaoxiang, Sun Kaijun, Fu Yiwei
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Determination of the air separator circulation path parameters [PDF]
E3S Web of Conferences, 2021 The article discusses the separation process efficiency issue of the fine powders in an air separator. The aerodynamic scheme of the air separator is proposed and the schemes of the gas-material flow through the elements of the separator gas-material ...
Sharapov Rinat
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Вестник СибАДИ, 2017 In the article some aspects of forecasting the operation of the ventilation systems of residential multi-apartment buildings with decentralized mechanical air removal and natural inflow are considered.
M. A. Krivoshein
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