Correction: CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge

Autor: Kamarul Arifin Ahmad, Syed Mohammed Aminuddin Aftab
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Velocity
Marine and Aquatic Sciences
lcsh:Medicine
02 engineering and technology
Leading Edges
0202 electrical engineering
electronic engineering
information engineering
lcsh:Science
Mammals
Multidisciplinary
Physics
05 social sciences
Classical Mechanics
Mechanics
Drag
NACA airfoil
Data Acquisition
NACA
Humpback Whales
Physical Sciences
Vertebrates
Engineering and Technology
Bubbles
020201 artificial intelligence & image processing
Geology
Research Article
Airfoil
Computer and Information Sciences
Leading edge
Reynolds Number
Tubercle
Aerospace Engineering
Marine Biology
Fluid Mechanics
Computational fluid dynamics
Continuum Mechanics
Motion
0502 economics and business
Animals
Marine Mammals
050210 logistics & transportation
business.industry
lcsh:R
Organisms
Whales
Biology and Life Sciences
Fluid Dynamics
Turbulence
Amniotes
Earth Sciences
lcsh:Q
business
Zdroj: PLoS ONE, Vol 12, Iss 11, p e0188792 (2017)
PLoS ONE
ISSN: 1932-6203
Popis: The Humpback whale tubercles have been studied for more than a decade. Tubercle Leading Edge (TLE) effectively reduces the separation bubble size and helps in delaying stall. They are very effective in case of low Reynolds number flows. The current Computational Fluid Dynamics (CFD) study is on NACA 4415 airfoil, at a Reynolds number 120,000. Two TLE shapes are tested on NACA 4415 airfoil. The tubercle designs implemented on the airfoil are sinusoidal and spherical. A parametric study is also carried out considering three amplitudes (0.025c, 0.05c and 0.075c), the wavelength (0.25c) is fixed. Structured mesh is utilized to generate grid and Transition SST turbulence model is used to capture the flow physics. Results clearly show spherical tubercles outperform sinusoidal tubercles. Furthermore experimental study considering spherical TLE is carried out at Reynolds number 200,000. The experimental results show that spherical TLE improve performance compared to clean airfoil.
Databáze: OpenAIRE
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