Results 61 to 70 of about 1,824,132 (206)

Adaptive Free-Form Deformation Parameterization Based on Spring Analogy Method for Aerodynamic Shape Optimization

open access: yesFluids
An adaptive Free-Form Deformation parameterization method based on a spring analogy is presented for aerodynamic shape optimization problems. The proposed method effectively incorporates the gradients of the objective and constraint functions, achieving ...
Jinxin Zhou   +3 more
doaj   +1 more source

Airfoil Blender for Blade Optimizations

open access: yesJournal of Physics: Conference Series, 2018
An airfoil database was developed in the present work. The database includes a multivariate, unstructured grid, Radial Basis Function (RBF), optimization-compatible interpolator for airfoil aerodynamic coefficients. The database was designed to aid complex blade design optimizations carried out in a novel optimization framework, HAWTOpt2, being ...
Skrzypiński, Witold   +2 more
openaire   +1 more source

Enhancing Chemical Engineering Education: Constructive Alignment and Augmented Reality in Experimental Fluid Mechanics

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 3, September 2026.
ABSTRACT Wind tunnel experiments are a key element of fluid mechanics education, enabling students to connect theoretical knowledge with practical observations. Despite their pedagogical value, traditional wind tunnel laboratories often lack outcome orientation, rely on prescriptive procedures, and provide limited opportunities for conceptual ...
Nils Kaufhold, Konrad Boettcher
wiley   +1 more source

Numerical optimization for high efficiency, low noise airfoils [PDF]

open access: yes29th AIAA Applied Aerodynamics Conference, 2011
One key element in the aerodynamic design of wind turbines is the use of specially tailored airfoils to increase the ratio of energy c apture to the loading and thereby to reduce cost of energy. At the same time, noise reduction i s becoming more and more important.
N. Bizzarrini   +2 more
openaire   +3 more sources

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, Volume 43, Issue 6, Page 3868-3892, September 2026.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

Parametric research and aerodynamic performance analysis of wind turbine airfoil with added flap

open access: yesAIP Advances, 2022
A self-popped up flap is added to the airfoil (S809) suction surface to improve aerodynamic performance under large angle of attack (AOA) inspired by the slightly popped up feathers on the trailing edge of a bird’s wing. The response surface methodology (
Qimin Ma   +3 more
doaj   +1 more source

Wind Turbine Blade Crack Detection and Assessment in Images Using Machine Learning

open access: yesWind Energy, Volume 29, Issue 9, September 2026.
ABSTRACT As the wind energy industry matures, inspection of wind turbine blades (WTBs) is shifting from a manual process involving rope access and grading of damage, towards unmanned aerial vehicle (UAV) photography and artificial intelligence‐aided processing of data.
Callum Rothon   +2 more
wiley   +1 more source

Wind Turbine Control for Spatially Varying Turbulence

open access: yesWind Energy, Volume 29, Issue 8, August 2026.
ABSTRACT This study investigates the influence of inflow turbulence generation simulation methods and blade pitch control strategies on the performance and blade structure loading of a large offshore wind turbine. Two inflow representations were considered: synthetic Kaimal turbulence generated in accordance with IEC design standards and large‐eddy ...
Hannah Mullings   +5 more
wiley   +1 more source

Coastal Marine Carbon and Air‐Sea Fluxes Quantified From pH Sensors on an Extended AUV Deployment

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract For the first time, the Autosub Long Range (ALR) completed a fully autonomous, long‐distance (2,000 km) scientific mission, delivering new insight into coastal carbonate dynamics and air‐sea CO2 ${\text{CO}}_{2}$ fluxes. Equipped with a suite of oceanographic sensors, including a Lab‐on‐Chip (LOC) pH sensor and a Sea‐Bird SeaFET pH sensor, the
Emily M. Hammermeister   +7 more
wiley   +1 more source

Self-noise produced by an airfoil with nonflat plate trailing-edge serrations [PDF]

open access: yes, 2013
This paper represents the results of an experimental study aimed at reducing the airfoil self-noise by the trailing edge serration of four different sawtooth geometries (defined in the serration angle and length).
Vathylakis, A   +3 more
core   +1 more source

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