Results 41 to 50 of about 1,855 (186)

Shaping the Flow: Impact of Blade Shape on Performance and Hemocompatibility in Rotodynamic Blood Pumps

open access: yesArtificial Organs, EarlyView.
Blade shapes (leading‐edge geometry and thickness) in rotodynamic blood pumps were systematically evaluated. Thinner blades improve pump efficiency by reducing blockage effects, while neither blade thickness nor leading‐edge geometry shows clear hemocompatibility benefits. Overall, blade shape has a limited impact on hemocompatibility, indicating it is
Benjamin Torner   +7 more
wiley   +1 more source

A Design Optimization Procedure for Efficient Turbine Airfoil Design

open access: yesComputers & Mathematics with Applications, 1993
An optimization procedure has been developed for the efficient design of turbine blade airfoil sections. A shape sensitivity study of the airfoils has been performed considering two leading edge shapes, circular and elliptic. Pressure and suction surfaces are approximated by polynomials.
Chattopadhyay, A.   +2 more
openaire   +1 more source

Hierarchical Differentiable Fluid Simulation

open access: yesComputer Graphics Forum, EarlyView.
We introduce a two‐step algorithm that significantly reduces memory usage for solving control problems using differentiable fluid simulation techniques: our method first optimizes for bulk forces at reduced resolution, then refines local details over sub‐domains while maintaining differentiability. In trading runtime for memory, it enables optimization
Xiangyu Kong   +4 more
wiley   +1 more source

Airfoil Design Optimization of Blended Wing Body for Various Aerodynamic and Stealth Stations

open access: yesAerospace
The airfoil is the foundation of an aircraft, and its characteristics have a significant impact on those of the aircraft. Conventional airfoil design mainly focuses on improving aerodynamic performance, while flying wing airfoil designs should also ...
Wei Zhang   +5 more
doaj   +1 more source

Parametric Study on Thermo-Hydraulic Performance of NACA Airfoil Fin PCHEs Channels

open access: yesEnergies, 2022
In this work, a discontinuous airfoil fin printed circuit heat exchanger (PCHE) was used as a recuperator in a micro gas turbine system. The effects of the airfoil fin geometry parameters (arc height, maximum arc height position, and airfoil thickness ...
Wei Wang   +5 more
doaj   +1 more source

The pectoralis muscle orientation as an indicator of the modes of wing‐propelled locomotion in birds

open access: yesJournal of Anatomy, EarlyView.
The pectoralis orientation of birds was consistent with the orientation of the aerodynamic force acting on the wing, varying by wing‐propelled locomotion (WPL) mode. The skeletal morphology unique to each WPL mode, related to the origin/insertion of the pectoralis, may be associated with these functional demands of pectoralis orientation.
Takumi Akeda, Shin‐ichi Fujiwara
wiley   +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

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

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

DESIGN OPTIMIZATION OF TRANSONIC AIRFOILS [PDF]

open access: yesEngineering Optimization, 1993
Numerical optimization procedures have been considered for the design of airfoils in transonic flow based on the transonic small-disturbance (TSD) and Euler equations. A sequential approximation optimization technique was implemented with an accurate approximation of the wave drag based on Nixon's coordinate straining approach.
C.-Y. JOH, B. GROSSMAN, R.T. HAFTKA
openaire   +1 more source

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