Xem 1-20 trên 193 kết quả Aerodynamics
  • If we consider that aerodynamics, from a modern point of view, is a branch of physics that study physical laws and their applications, regarding the displacement of a body into a fluid, such concept could be applied to any body moving in a fluid at rest or any fluid moving around a body at rest. The general concept outlined above is applicable to planes; cars; boats; big ships; missiles; wind energy generators; small flying objects, like UAVs; etc.

    pdf0p wqwqwqwqwq 06-07-2012 71 17   Download

  • This textbook is a collection of technical papers that were presented at the 10th International Symposium on Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines held September 8-11, 2003 at Duke University in Durham, North Carolina. The papers represent the latest in state of the art research in the areas of aeroacoustics, aerothermodynamics, computational methods, experimental testing related to flow instabilities, flutter, forced response, multistage, and rotor-stator effects for turbomachinery....

    pdf604p chipmoon 19-07-2012 51 4   Download

  • Helicopter aerodynamics is the branch of physics dealing with the forces and pressures exerted by air in motion. The atmosphere, the mass of air, which completely envelops the earth, is composed of varying and nonvarying constituents. The nonvarying constituents include oxygen (21%) and nitrogen (78%). The varying constituents include CO2, argon, hydrogen, helium, neon, krypton, and water vapor, which will vary from negligible amounts to approximately 4% by volume (100% relative humidity). Air is a fluid and is affected by changes in temperature, pressure, and humidity....

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  • A brief introduction is provided in this section about Aerodynamics in general. However, the focus is mainly on low speed flow. Concepts have been introduced without too much rigor. This would hopefully help the reader to get a first glimpse of the subject without getting into too many details. Figures have been used to explain concepts wherever possible. Lengthy derivations have been avoided because reference books could be used for that purpose. Main equations to remember have been provided straight away with relevant explanation....

    pdf96p sn_buon 29-11-2012 35 3   Download

  • (bq) part 1 book "aerodynamics of wind turbines hansen" has contents: general introduction to wind turbines, aerodynamics, momentum theory for an ideal wind turbine, shrouded rotors, the classical blade element momentum method, control regulation and safety systems, optimization.

    pdf95p bautroibinhyen18 23-02-2017 51 3   Download

  • (bq) part 2 book "aerodynamics of wind turbines hansen" has contents: unsteady bem model, introduction to loads and structures, dynamic structural model of a wind turbine, beam theory for the wind turbine blade, sources of loads on a wind turbine, wind simulation, fatigue, final remarks.

    pdf97p bautroibinhyen18 23-02-2017 43 3   Download

  • Basic definitions, The atmosphere, Aerodynamic Nomenclature, Aircraft Instruments, Airplane Nomenclatures,... as the main contents of the lesson lecture 1 "The Atmosphere, Aerodynamic and Airplane Nomenclatures". Invite you to consult.

    ppt40p hoaithanhthitinh 07-12-2015 27 1   Download

  • (bq) part 2 book "aerodynamics for engineering students" has contents: compressible flow, airfoils and wings in compressible flow, viscous flow and boundary layers, flow control and wing design, propulsion devices.

    pdf368p bautroibinhyen19 02-03-2017 40 1   Download

  • (bq) part 1 book "aerodynamics for engineering students" has contents: basic concepts and definitions, fundamental equations of fluid mechanics, potential flow, two dimensional wing theory, wing theory.

    pdf349p bautroibinhyen19 02-03-2017 42 1   Download

  • (bq) part 1 book "aerodynamics for engineering students" has contents: basic concepts and definitions, governing equations of fluid mechanics, potential flow, two-dimensional wing theory, finite wing theory.

    pdf289p bautroibinhyen19 02-03-2017 37 1   Download

  • (bq) part 2 book "aerodynamics for engineering students" has contents: compressible flow, viscous flow and boundary layers, flow control and wing design, propellers and propulsion.

    pdf325p bautroibinhyen19 02-03-2017 47 1   Download

  • The paper presents the results of theoretical and experimntal studies of the aerodynamic characteristics of a wing-in-surface-effect ship (WISES), which was made under coordination of the Institute of Mechanics, Vietnamese Academy of Science and Tech nology.

    pdf12p thienthanquydu 21-10-2018 16 0   Download

  • The relationships between aerodynamic properties such as vacuum pressure and suction speed and the fiber and physiomechanical properties of cotton during harvesting were determined by using the Nazilli 84 cotton variety. Aerodynamic properties such as vacuum pressure and suction speed and physio-mechanical properties such as wet and dry lock masses.

    pdf6p aquaman27 15-01-2019 10 0   Download

  • Ebook Aerodynamic data of space vehicles: Part 1 present content introduction; the discipline aerodynamics; classification and project data of space vehicles; aerodynamic data of non-winged re-entry vehicles (RV-NW) - capsules and probes.

    pdf131p kethamoi6 01-07-2020 2 0   Download

  • Ebook Aerodynamic data of space vehicles: Part 2 present content aerothermodynamic data of non-winged re-entry vehicles (RV-NW) - cones and bicones; aerothermodynamic Data of Winged Re-entry Vehicles (RV-W); aerothermodynamic Data of Cruise and Acceleration Vehicles (CAV).

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  • In this paper, a commercial CFD code, ANSYS-Fluent has been used to investigate the effect of mesh number generated in the computed domain on the CFD aerodynamic performances of a container ship. A full-scale model of the 1200TEU container ship has been chosen as a reference model in the computation. Five different mesh numbers for the same dimension domain have been used and the CFD aerodynamic performances of the above water surface hull of the ship have been shown.

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  • Knowledge about the morphological adaptations of body and wing in birds helps to know about their aerodynamic performance. The present study was aimed to analyze the morphometry of the wing of the blue and yellow macaw (Ara ararauna) with reference to aerodynamics. Various aerodynamic measurements namely body weight, body length, wing span, wing area, wing load and aspect ratio were measured in three adult male birds. The wings were short, elliptical and rounded.

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  • This study describes an effectively analytic methodology to investigate the aerodynamic performance of H vertical axis wind turbine (H-VAWT). An in-house code based on double multiple stream tube theory (DMST) coupled with dynamic stall and wake correction is implemented to estimate the power coefficient. Design optimization of airfoil shape is conducted to study the influences of the dynamic stall and turbulent wakes.

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  • The aim of this study is to examine the flow through unmanned aerial vehicles (UAV) including the main wing, tail and body and to calculate the aerodynamic force on the horizontal tail when rotating the elevator using the Fluent software for the viscous flows. Small disturbance theory was used to calculate the longitudinal stability of the UAV when controlling the elevator. Flying qualities are assessed to show that changes in the aerodynamic characteristics of the wing, tail, fuselage and configuration of the UAV may be required.

    pdf15p nguaconbaynhay11 07-04-2021 6 0   Download

  • This paper presents an approach using the CFD method to build a calculated model for studying aerodynamic interaction between the main rotor and helicopter fuselage. The calculated model consists of two components which are the main rotor and helicopter fuselage, that is capable of determining the aerodynamic characteristics of the main rotor in consideration of the influence of the helicopter fuselage.

    pdf9p cothumenhmong11 05-05-2021 5 0   Download




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