Results 31 to 40 of about 5,447,507 (295)

The Effect of Engine Location on the Aerodynamic Efficiency of a Flying-V Aircraft

, 2020
The Flying-V is a novel flying wing concept where the main lifting surface has been fully integrated with the passenger cabin. This study focuses on the effect of engine positioning on aerodynamic interference under regulatory and structural constraints.
Berta Rubio Pascual, R. Vos
semanticscholar   +1 more source

Aerodynamic characteristics of a delta wing aircraft under ground effect

Frontiers in Mechanical Engineering
The main objective of this study is to investigate the impact of ground effects on the aerodynamic coefficients of a delta wing aircraft model. Since the flow on the delta wing exhibits vortical flow inherently, it is crucial to examine the influence of ...
Arash Shams Taleghani, Arsalan Ghajar
doaj   +1 more source

Effect of twist, camber and spanwise bending on the aerodynamic performance of flapping wings

Journal of Biomechanical Science and Engineering, 2018
Insect wings change its shape dynamically through the interactions of the structure, and the aerodynamic and inertial forces when flapping, which can greatly affect its aerodynamic performances.
Toshiyuki NAKATA, Ryusuke NODA, Hao LIU
doaj   +1 more source

Experience With Performing Rheocarna Therapy via the Single‐Needle Method for Treatment of Chronic Limb‐Threatening Ischemia

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, Rie Tanaka, Reona Kawahira, Shingo Nabeta, Kouhei Naoi, Kazuhito Kitajima, Akira Wada, Tomonari Takagi, Norihiko Ohura, Akira Miyamoto   +9 more
wiley   +1 more source

A State-of-the-Art Review of Wind Turbine Blades: Principles, Flow-Induced Vibrations, Failure, Maintenance, and Vibration Suppression Techniques

Energies
The growing demand for renewable energy has underscored the importance of wind power, with wind turbines playing a pivotal role in sustainable electricity generation.
Tahir Muhammad Naqash, Md. Mahbub Alam
doaj   +1 more source

Geometry Design Optimization of a Wind Turbine Blade Considering Effects on Aerodynamic Performance by Linearization

Energies, 2020
For a wind turbine to extract as much energy as possible from the wind, blade geometry optimization to maximize the aerodynamic performance is important.
Kyoungboo Yang
doaj   +1 more source

Effects of low and high frequency actuation on aerodynamic performance of a supercritical airfoil

Frontiers in Mechanical Engineering, 2023
The main objective of this study is to investigate the effects of low and high frequency actuation in improving the aerodynamic performance of the supercritical airfoil with the approach of using it in a high-lift or flight control device.
Soheila Abdolahipour
doaj   +1 more source

Analysis of MAV Rotors Optimized for Low Noise and Aerodynamic Efficiency with Operational Constraints

Fluids
The rapid growth of drone use in urban areas has prompted authorities to review airspace regulations, forcing drone manufacturers to anticipate and reduce the noise emissions during the design stage.
Pietro Li volsi, G. Brogna, R. Gojon, T. Jardin, H. Parisot-Dupuis, J. Moschetta   +5 more
semanticscholar   +1 more source

Prognosis of Long‐Term Continuous Renal Replacement Therapy and the Impact of Combined Continuous Intravenous Sodium Infusion Therapy

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi, Atsuyoshi Mita, Kosuke Sonoda, Makoto Harada, Koji Hashimoto, Hiroshi Imamura, Yuji Kamijo   +6 more
wiley   +1 more source

A Wind Tunnel Study of the Aerodynamic Characteristics of Wings with Arc-Shaped Wingtips

Engineering Proceedings
Wingtip devices like winglets and other types have been created to improve the aerodynamic efficiency of aircraft based on minimizing the induced drag of tip vortices. This study aims to investigate the aerodynamic characteristics of these devices at low
Stanimir Penchev, Hristian Panayotov
doaj   +1 more source