Results 41 to 50 of about 311 (175)

Aerodynamic and aeroacoustic characteristics of a bionic morphing flap

Energy Reports, 2023
Birds adapt to the changing flight conditions by performing intricate feather-movements to manipulate the airflow. The avian wings often undergo seamless transformations at the trailing-edge to achieve camber-reflexes for extended flight envelope.
Md. Zishan Akhter, Farag Khalifa Omar, Emad Elnajjar   +2 more
doaj   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, Volume 28, Issue 4, 18 February 2026.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khaleghian, Anahita Emami   +3 more
wiley   +1 more source

From Origami to Bistable and Laminate Structures: A Review for Multifunctional Applications from Structural Perspective of Shape‐Changing Structures

Advanced Intelligent Systems, Volume 8, Issue 2, February 2026.
This review explores how shape‐changing structures—origami, bistable, and laminate structures—enable multifunctionality in soft robotics and metamaterials. Starting from structural design, it examines core principles, real‐world applications, and ongoing challenges.
Lingchen Kong, Yaoyao Fiona Zhao
wiley   +1 more source

Design and Fabrication of Smart Small Airfoil Using Surface Deformation and Experimental Study of Aerodynamic Properties [PDF]

فناوری در مهندسی هوافضا
In this article, the case of deformable structures in order to change the curvature of a symmetrical airfoil in a Smart way and also the investigation of the aerodynamic forces inside the wind tunnel in miniature dimensions have been discussed ...
Ramin Zakeri
doaj   +1 more source

Failure Criterion‐Based Bead Optimization of a Wind Turbine Blade Root Section

Wind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT This study presents a bead‐based optimization framework for fiber composite wind turbine blades, employing the Tsai–Wu failure criterion as the structural performance measure. The objective is to design an optimal transition geometry between an existing blade and a root section with 20% smaller diameter, while preserving the original material ...
Philipp Ulrich Haselbach, Phillip Auldon Somers, Lars Pilgaard Mikkelsen, Anton Jurinic, Claus B. W. Pedersen   +4 more
wiley   +1 more source

To Enhance the Aerodynamic Power Efficiency of Vertical Axis Wind Turbines: Proposing Morphing Strategies for Variable Wind Speed

Machines
This study investigates the aerodynamic performance of vertical axis wind turbines (VAWTs), focusing on a novel dual-airfoil morphing mechanism for H-type Darrieus turbines.
Hanif Ullah, Yang Huang, Vincenzo Gulizzi, Antonio Pantano   +3 more
doaj   +1 more source

Numerical Simulation Study on Aerodynamic Transition between Airborne and Ground-Effect Flight for a Morphing Airfoil [PDF]

Hangkong bingqi
To explore and address the cross-influence issues arising from the coexistence of two distinct flight and control logics during the transition between high-altitude flight and ground-effect flight modes for aircraft， a novel morphing airfoil suitable for
Luo Yuyang, Luo Yinpeng, Chen Pengyun
doaj   +1 more source

Active Fluid Gurney Flaps, Controllable Lift Enhancement Toward Wind Turbine Power Production Regulation

Wind Energy, Volume 29, Issue 1, January 2026.
ABSTRACT Meeting the rising demand for renewable energy requires innovative solutions to enhance wind power extraction, particularly given demographic and geographic constraints on wind farm deployment. Active high‐lift devices, such as the Active Fluid Gurney Flap (AFGF), offer a promising approach that can dynamically modify aerodynamic performance ...
Mario Lucas, Jorge Saavedra
wiley   +1 more source

Experimental Validation and Evaluation of a Coupled Twist-Camber Morphing Wing Concept

Applied Sciences, 2021
A morphing wing concept allowing for coupled twist-camber shape adaptation is proposed. The design is based on an optimized thickness distribution both spanwise and chordwise to be able to morph the wing sections into targeted airfoil shapes ...
José Lobo do Vale, John Raffaelli, Afzal Suleman   +2 more
doaj   +1 more source

Aerodynamic and aeroacoustic performance of airfoils with morphing structures [PDF]

Wind Energy, 2015
AbstractAerodynamic and aeroacoustic performance of airfoils fitted with morphing trailing edges are investigated using a coupled structure/fluid/noise model. The control of the flow over the surface of an airfoil using shape optimization techniques can significantly improve the load distribution along the chord and span lengths whilst minimising noise
Ai, Qing, Azarpeyvand, Mahdi, Lachenal, Xavier, Weaver, Paul M.   +3 more
openaire   +3 more sources