Results 81 to 90 of about 3,625 (187)

Airfoil Design and Flow Analysis of a Multi-Blade Centrifugal Fan: An Experimental and Simulation Study

Applied Sciences
To overcome the technical challenges of the multi-blade centrifugal fan, such as low efficiency and insufficient total pressure, the blades of the fan were optimally designed in this study.
Haonan Yin, Hanqing Zhao, Yiping Li, Jie Zhao, Kai Zhang   +4 more
doaj   +1 more source

The Harmonic Pitching NACA 0018 Airfoil in Low Reynolds Number Flow

Energies
This study investigates the aerodynamic performance of a symmetric NACA 0018 airfoil under harmonic pitching motions at low Reynolds numbers, a regime characterized by the presence of laminar separation bubbles and their impact on aerodynamic forces. The
Jan Michna, Maciej Śledziewski, Krzysztof Rogowski   +2 more
doaj   +1 more source

Effect of Airfoil's Attack Angle and Airfoil‐Cylinder Configuration on Turbulence Parameters and Airfoil's Aerodynamic Efficiency

Energy Science & Engineering
ABSTRACT The increasing demand for energy in daily life and the finite nature of fossil fuel reserves have driven researchers worldwide to explore renewable energy sources such as wind energy. To optimize the performance and minimize energy losses in vertical wind turbines, parameters such as the airfoil's angle of attack, as well as ...
Reza Abbaspour, Mitra Yadegari, Abdolamir Bak Khoshnevis   +2 more
openaire   +1 more source

Assessment of Airfoil Lightning Strikes Characterization on Aircraft in Dynamic Conditions

Atmosphere
Lightning is a long-gap high-current discharge event in nature, and its enormous discharge energy can cause structural damage to struck objects. Relevant studies have shown that aircraft in the air are exposed to a higher risk of lightning strikes than ...
Ning Yang, Zheng Shi, Ying Wen, Shuangwu Yuan, Haohui Zhang   +4 more
doaj   +1 more source

Research progress on aerodynamic stealth design technology of aircraft

Hangkong gongcheng jinzhan
Aerodynamic stealth design is a key technology for aircraft to realize efficient combat in high-risk environments，and it has been a hot technology researched by aviation powers for a long time.
ZHAO Ke, GAO Zhenghong, ZHOU Lin, XIA Lu, DENG Jun, HUANG Jiangtao   +5 more
doaj   +1 more source

A Zonal Detached Eddy Simulation of the Trailing Edge Stall Process of a LS0417 Airfoil

Aerospace
A Zonal Detached Eddy Simulation (ZDES) based on the SST turbulence model is implemented to the numerical investigation of the trailing edge stall of a LS-0417 airfoil, which includes multiple DES modes for different classifications of flow separation ...
Wenbo Shi, Heng Zhang, Yuanxiang Li
doaj   +1 more source

Numerical and Experimental Investigation of Thickness Effect on the Cambered Airfoils at Low Reynolds Numbers

Havacılık ve Uzay Teknolojileri Dergisi
In this study, experimentaland numerical study for the cambered airfoils was conducted at Re = 1.5x105and Re = 2.5x105and different angles of attack.
Muhammer Ayvazoğlu, Sinem Keskin, Rümeysa Şahin, Mehmet Sincar, Eren Anıl Sezer, Halil Hakan Açıkel, Mustafa Özden, Mustafa Serdar Genç   +7 more
doaj  

Enhancing performance of gravitational water vortex turbines through airfoil design and basin parameters. [PDF]

Sci Rep
Michel M, Alaktaa AH, Elsherbiny K, Mehanna A, Shehata AS.   +4 more
europepmc   +1 more source

CFD-driven neural network and SVM models for airfoil aerodynamic enhancement with bio-inspired riblets and plasma actuation. [PDF]

Sci Rep
Karthikeyan KV, Raju A, Jain J, Lekshmanan S, Rajan H.   +4 more
europepmc   +1 more source

Numerical investigation of co-flow jet integration to enhance the aerodynamic efficiency of airfoils used in wind turbine applications. [PDF]

Sci Rep
Farghaly MB, El Kader OMA, Alsharif AMA, Halawa M.   +3 more
europepmc   +1 more source