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481
Control of Aerodynamic Characteristics of Thick Airfoils at Low Reynolds Numbers Using Methods of Boundary Layer Control
Published 2024-01-01Subjects: Get full text
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482
Novel Approach of Airfoil Shape Representation Using Modified Finite Element Method for Morphing Trailing Edge
Published 2023-04-01Subjects: “…airfoil parametrization…”
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483
Cell-Set Modelling for a Microtab Implementation on a DU91W(2)250 Airfoil
Published 2020-12-01“…Computational simulations were carried out for fully mesh and cell-set models: MT lengths were set at 1.0%, 1.5% and 2.0% of the airfoil chord length (c) and the MTs were placed at 93% and 95% of c from the leading edge of the airfoil. …”
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484
Performance Analysis of a H-Darrieus Wind Turbine for a Series of 4-Digit NACA Airfoils
Published 2020-06-01Subjects: Get full text
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485
Comparative Study of Dynamic Stall under Pitch Oscillation and Oscillating Freestream on Wind Turbine Airfoil and Blade
Published 2018-07-01“…During upstroke, PO results in a positive effective airfoil camber, while OF has an additional negative effective airfoil camber, and yet in contrast during downstroke, PO decreases the effective camber, while OF increases the effective camber. …”
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486
Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions
Published 2023-02-01Subjects: “…airfoil…”
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487
Aerodynamic Design Optimization of a Morphing Leading Edge and Trailing Edge Airfoil–Application on the UAS-S45
Published 2021-02-01Subjects: “…morphing airfoil optimization…”
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488
Comparative Study on the Effect of Leading Edge Protuberance of Different Shapes on the Aerodynamic Performance of Two Distinct Airfoils
Published 2022-11-01Subjects: Get full text
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489
Assessment of Turbulence Models for Unsteady Separated Flows Past an Oscillating NACA 0015 Airfoil in Deep Stall
Published 2023-05-01“…This paper provides 2D Computational Fluid Dynamics (CFD) investigations, using OpenFOAM package, of the unsteady separated fully turbulent flows past a NACA 0015 airfoil undergoing sinusoidal pitching motion about its quarter-chord axis in deep stall regime at a reduced frequency of 0.1, a free stream Mach number of 0.278, and at a Reynolds number, based on the airfoil chord length, , of . …”
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490
Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditions
Published 2023-02-01Subjects: Get full text
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491
Study on design of low Reynolds number reflexed airfoil for solar-powered UAV in flying wing configuration
Published 2022-06-01“…Firstly, the accuracy and reliability of both quasi-steady and unsteady numerical methods to simulate the LRN transition flow and the stall separated flow at large angles of attack (AOA) are validated by an airfoil case study at specified Reynolds numbers; Secondly, the LRN reflexed air-foil optimization design framework is established by using the CST parameterization method, the multi-island genetic algorithm (MIGA), and the kriging surrogate model; Lastly, the LRN reflexed airfoil optimization study is conducted by using the NACA 8-H-12 reflexed airfoil as the baseline airfoil, it shows that both the lift-to-drag performance and the stall characteristics of the designed airfoil is significantly improved when compared with the baseline airfoil, which are quite beneficial for the small hand-launched solar-powered UAV in flying wing configuration to realize the hand-launched take off and the high-lift long-endurance flight.…”
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492
Optimization of structural parameters and thermal-hydraulic numerical simulation of printed circuit heat exchanger with airfoil fins
Published 2021-11-01Subjects: Get full text
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493
Numerical calculations on the flow near the plunging airfoil and relation with the flying or swimming animals, birds, fish and insects
Published 2015-10-01“…We investigated the influence of the airfoil geometry on the performance of the plunging airfoil numerically. …”
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494
Controlling the Chaotic Motions of an Airfoil with a Nonlinear Stiffness Using Closed-Loop Harmonic Parametric Excitation
Published 2020-09-01“…The purpose of this research is to conduct a preliminary investigation into the possibility of suppressing the flutter and post-flutter (chaotic) responses of a two-dimensional self-excited airfoil with a cubic nonlinear stiffness (in torsion) and linear viscous damping via closed-loop harmonic parametric excitation. …”
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495
Three-dimensional CFD Analysis of Performance of Small-scale Hawt based on Modified NACA-4415 Airfoil
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496
Aerodynamic Shape Optimization of a NACA0018 Airfoil Using Adjoint Method and Gradient-Based Optimizer
Published 2023-01-01“…The purpose of this study is to demonstrate the suitability and efficacy of the adjoint method on the aerodynamic shape optimization on a simple symmetrical airfoil NACA0018 at low Reynolds number for wind turbine application. …”
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497
Aerodynamic performance characteristics of EYO-Series low Reynolds number airfoils for small wind turbine applications
Published 2022-12-01Subjects: “…Airfoil…”
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498
Aerodynamic study of a circular arc airfoil at low Reynolds numbers using Cartesian mesh CFD
Published 2022-10-01Subjects: Get full text
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499
Experimental Investigation of the Effect of Bio-Inspired Wavy Leading-Edges on Aerodynamic Performance and Flow Topologies of the Airfoil
Published 2024-02-01“…The characteristic of delayed airfoil stalls caused by the bio-inspired Wavy Leading-Edges (WLEs) has attracted extensive attention. …”
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500
Numerical investigation of the influences of ridge ice parameters on lift and drag coefficients of airfoils through design of experiments
Published 2024-01-01“…In addition, the leading-edge radii of these three airfoils, as well as the shapes of the upper and lower surfaces, could alter the influences of design parameters on C L and C D .…”
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