Results 41 to 50 of about 39,978 (316)
MathematicsWith the rapid development of artificial intelligence technology, data-driven advanced models have provided new ideas and means for airfoil aerodynamic optimization.
Liyue Wang +6 more
doaj +1 more source
Increasing L/D Ratio of Wing by Delaying Flow Separation for Better Aerodynamic Performance [PDF]
Journal of Applied Fluid MechanicsTo improve the aerodynamic efficiency of the aircraft, the article focuses on optimizing the L/D ratio through postponement of flow separation. Elevating the L/D ratio leads to diminished drag and delays stall occurrence at high angles of attack (α). The
L. P. Ramesh, V. Mugendiran, G. Sivaraj
doaj +1 more source
Effects of Flexibility on the Aerodynamic Performance of Flapping Wings [PDF]
6th AIAA Theoretical Fluid Mechanics Conference, 2011 AbstractEffects of chordwise, spanwise, and isotropic flexibility on the force generation and propulsive efficiency of flapping wings are elucidated. For a moving body immersed in viscous fluid, different types of forces, as a function of the Reynolds number, reduced frequency (k), and Strouhal number (St), acting on the moving body are identified ...
Kang, C.K. +3 more
openaire +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai +4 more
wiley +1 more source
Dynamics of marine vehicles with aerodynamic surfaces [PDF]
, 2008 An assessment of the relative speeds and payload capacities of airborne and waterborne vehicles highlights a gap which can be usefully filled by a new vehicle concept, utilizing both hydrodynamic and aerodynamic forces.
Collu, Maurizio
core
A comparison of coaxial and conventional rotor performance
, 2009 The performance of a coaxial rotor in hover, in steady forward flight, and in level, coordinated turns is contrasted with that of an equivalent, conventional rotor with the same overall solidity, number of blades, and blade aerodynamic properties.
Brown, R.E. +3 more
core +1 more source
Effects of Wing Kinematics on Aerodynamics Performance for a Pigeon-Inspired Flapping Wing
BiomimeticsThe wing kinematics of birds plays a significant role in their excellent unsteady aerodynamic performance. However, most studies investigate the influence of different kinematic parameters of flapping wings on their aerodynamic performance based on ...
Tao Wu, Kai Wang, Qiang Jia, Jie Ding
doaj +1 more source
An Improved Multi-Objective Particle Swarm Optimization Method for Rotor Airfoil Design
Aerospace, 2023 In this study, a multi-objective aerodynamic optimization is performed on the rotor airfoil via an improved MOPSO (multi-objective particle swarm optimization) method.
Yongchuan Wu, Gang Sun, Jun Tao
doaj +1 more source
Investigation into the Aerodynamic Performance of a Concept Sports Car [PDF]
Journal of Applied Fluid Mechanics, 2020 Transport aerodynamic optimisation has become an increasingly important field of study in response to emerging factors, such as new human needs and market demands. This paper provides a concept in-house built sports-car aerodynamic and shape optimisation.
M. Dickison +5 more
openaire +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi +9 more
wiley +1 more source