Showing 1,321 - 1,340 results of 1,473 for search '"Airfoil"', query time: 0.10s Refine Results
  1. 1321

    2D Numerical Simulation and Sensitive Analysis of H-Darrieus Wind Turbine by Seyed Mohammad E. Saryazdi, Mehrdad Boroushaki

    Published 2018-02-01
    “…In order to complete this simulation, sensitivity analysis of the effective turbine parameters such as solidity factor, airfoil shape, wind velocity and shaft diameter were done. …”
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    Article
  2. 1322

    A Comparison of Computational and Experimental Fluid Dynamics Studies between Scaled and Original Wing Sections, in Single-Phase and Two-Phase Flows, and Evaluation of the Suggeste... by Dionysios G. Karkoulias, Anastasios G. Panagiotopoulos, Andreas I. Giannaros, Dionissios P. Margaris

    Published 2022-02-01
    “…More specifically, we investigate the one-phase and two-phase flow over a typical wing section NACA 641-212 airfoil, in the commercial code Ansys Fluent. Two computational models were developed; the first model represents the original dimensions of the wing, while the second is downscaled to 23% of the original. …”
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    Article
  3. 1323

    Design, Manufacture and Wind Tunnel Test of a Modular FishBAC Wing with Novel 3D Printed Skins by Andrés E. Rivero, Stephane Fournier, Rafael M. Heeb, Benjamin K. S. Woods

    Published 2022-01-01
    “…Results show that the new design is capable of achieving the same large changes in airfoil lift coefficient (approximate <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>Δ</mo><msub><mi>C</mi><mi>L</mi></msub><mo>≈</mo><mn>0.55</mn></mrow></semantics></math></inline-formula>) with a low drag penalty seen in previous FishBAC work, but with a much simpler, practical and modular design. …”
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    Article
  4. 1324

    Optimized kinematics enable both aerial and aquatic propulsion from a single three-dimensional flapping wing by Izraelevitz, Jacob Samuel, Kotidis, Miranda P., Triantafyllou, Michael S

    Published 2018
    “…Flapping wings in nature demonstrate a large force envelope, with capabilities far beyond the traditional limits of static airfoil section coefficients. Puffins, murres, and other auks particularly showcase this effect, as they are able to generate both enough thrust to swim and enough lift to fly, using the same wing, purely by changing the wing motion trajectory. …”
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    Article
  5. 1325
  6. 1326
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  9. 1329

    Design, build and testing of an aerial rim driven fan by Tay, Jia Hui

    Published 2022
    “…RDF design parameters such as number of blades, airfoil profile and design tip speed ratio were investigated to determine the optimum design. …”
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    Thesis-Master by Research
  10. 1330

    Impact of Solidity on the Aerodynamic Performance of Vertical Axis Wind Turbine via 2D CFD Simulation by Kok, Hoe Wong, Wen, Tong Chong, Ken, Yeen Lee, Wan Khairul Muzammil Abd Rahim, Shabudin bin Mat

    Published 2022
    “…The sliding mesh method and the k-ω SST turbulence model were selected to model the rotational motion of the NACA0021 airfoil VAWT. The reliability of the simulation was first validated with the data available in the literature where a good agreement is presented. …”
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    Article
  11. 1331

    A control method for hydraulic fracturing of the hard roof with long and short boreholes by Jinkui Ma, Jinkui Ma, Hong Li, Xiaomin Guo, Xiaomin Guo, Fuchao Tian, Fuchao Tian, Huaiguang Guo, Huaiguang Guo

    Published 2022-12-01
    “…The formation of cracks involves a vertical main crack and multiple extended-airfoil branch cracks which interconnect transversely and longitudinally. …”
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    Article
  12. 1332

    Implementation of Flux Limiters in Simulation of External Aerodynamic Problems on Unstructured Meshes by A. V. Struchkov, A. S. Kozelkov, R. N. Zhuchkov, K. N. Volkov, D. Yu. Strelets

    Published 2023-01-01
    “…Problems with a supersonic flow in a channel with a wedge and transonic flow over NACA0012 airfoil were selected for the examination of the limiter functions applicability. …”
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    Article
  13. 1333

    Numerical investigation on heat transfer in an advanced new leading edge impingement cooling configuration by G. Lin, K. Kusterer, A.H. Ayed, D. Bohn, T. Sugimoto, R. Tanaka, M. Kazari

    Published 2015-12-01
    “…The highest heat transfer rates on the airfoil can always be found on the stagnation region of the leading edge. …”
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    Article
  14. 1334

    Single-step deep reinforcement learning for two- and three-dimensional optimal shape design by H. Ghraieb, J. Viquerat, A. Larcher, P. Meliga, E. Hachem

    Published 2022-08-01
    “…Although the low number of degrees of freedom inevitably constrains the range of attainable shapes, the optimal is systematically found to perform just as well as a conventional airfoil, despite DRL starting from the ground up and having no a priori knowledge of aerodynamic concepts. …”
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    Article
  15. 1335

    Study the Effect of Winglet Height Length on the Aerodynamic Performance of Horizontal Axis Wind Turbines Using Computational Investigation by Eslam S. Abdelghany, Hesham H. Sarhan, Raed Alahmadi, Mohamed B. Farghaly

    Published 2023-07-01
    “…The turbine has three blades with a radius of 0.36 m, and the NACA4418 airfoil blade sections were used to build the blade profile. …”
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    Article
  16. 1336

    Aerodynamic Evaluation of Flapping Wings with Leading-Edge Twisting by Lung-Jieh Yang, Vivek Jabaraj Joseph, Yuan-Lung Lo, Wen-Tzu Tang, Balasubramanian Esakki, Saravana Kompala, Paritala Veeranjaneyulu

    Published 2023-03-01
    “…Next, MATLAB software was used to create the 3D wing surfaces from the instantaneous stereophotography Kwon3D trajectories to fully sketch the leading-edge twisting features. The 2D airfoil cut sections at the mean aerodynamic chord at different stroke moments depict the instantaneous angles of attack to justify the aforementioned wind tunnel testing data and it was verified using a theoretical trajectory model. …”
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    Article
  17. 1337

    Reliability assessment of off-policy deep reinforcement learning: A benchmark for aerodynamics by Sandrine Berger, Andrea Arroyo Ramo, Valentin Guillet, Thibault Lahire, Brice Martin, Thierry Jardin, Emmanuel Rachelson, Michaël Bauerheim

    Published 2024-01-01
    “…The benchmark consists in controlling an airfoil to reach a target. The problem is solved with either a low-cost low-order model or with a high-fidelity CFD approach. …”
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    Article
  18. 1338

    Surrogate-Based Design Optimization of a H-Darrieus Wind Turbine Comparing Classical Response Surface, Artificial Neural Networks, and Kriging by D. Cardoso Netto, R. Ramirez Gustavo, N. Manzanares Filho

    Published 2023-01-01
    “…This article sought to study the optimal geometrical parameters of a H-Darrieus vertical axis wind turbine using surrogate-based optimization with three different types of surrogate models and compared them. Airfoil chord and thickness were chosen as the design variables and respective ranges set at 0.32-0.6 m and 0.04-0.16 m. …”
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    Article
  19. 1339

    Exploring the Impact of Rapidly Actuated Control Surfaces on Drone Aerodynamics by Ashim Panta, Matthew Marino, Alex Fisher, Abdulghani Mohamed, Simon Watkins

    Published 2023-07-01
    “…In this paper, the focus is on the dynamic effects observed from rapidly actuated 30% chord leading- or trailing-edge hinged control surfaces affixed to two flat-plate airfoils. Forces were resolved from surface pressure measurements and are augmented by PIV measurements, smoke flow visualization and analyses. …”
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    Article
  20. 1340

    Delaying the Stall of A Low-Wing Aircraft Using A Novel Powerful Vortex Generator by Mostafa Goharshadi, Masoud Mirzaei

    Published 2022-10-01
    “…To evaluate the concept of PVG in more realistic situations, the wing airfoil was optimized at the same three points using the adjoint method. …”
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    Article