CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge.
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...
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ftdoajarticles:oai:doaj.org/article:799c5087fa254096895ed42a62c7ccf1 2023-05-15T16:36:00+02:00 CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge. S M A Aftab K A Ahmad 2017-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0183456 https://doaj.org/article/799c5087fa254096895ed42a62c7ccf1 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC5574603?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0183456 https://doaj.org/article/799c5087fa254096895ed42a62c7ccf1 PLoS ONE, Vol 12, Iss 8, p e0183456 (2017) Medicine R Science Q article 2017 ftdoajarticles https://doi.org/10.1371/journal.pone.0183456 2022-12-31T03:53:24Z 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. Article in Journal/Newspaper Humpback Whale Directory of Open Access Journals: DOAJ Articles PLOS ONE 12 8 e0183456 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Medicine R Science Q |
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Medicine R Science Q S M A Aftab K A Ahmad CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge. |
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Medicine R Science Q |
description |
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. |
format |
Article in Journal/Newspaper |
author |
S M A Aftab K A Ahmad |
author_facet |
S M A Aftab K A Ahmad |
author_sort |
S M A Aftab |
title |
CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge. |
title_short |
CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge. |
title_full |
CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge. |
title_fullStr |
CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge. |
title_full_unstemmed |
CFD study on NACA 4415 airfoil implementing spherical and sinusoidal Tubercle Leading Edge. |
title_sort |
cfd study on naca 4415 airfoil implementing spherical and sinusoidal tubercle leading edge. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2017 |
url |
https://doi.org/10.1371/journal.pone.0183456 https://doaj.org/article/799c5087fa254096895ed42a62c7ccf1 |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_source |
PLoS ONE, Vol 12, Iss 8, p e0183456 (2017) |
op_relation |
http://europepmc.org/articles/PMC5574603?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0183456 https://doaj.org/article/799c5087fa254096895ed42a62c7ccf1 |
op_doi |
https://doi.org/10.1371/journal.pone.0183456 |
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PLOS ONE |
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12 |
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8 |
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e0183456 |
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1766026314291085312 |