Effect of Wavy Leading Edge with Various Aspect Ratios on a Rectangular Wing
Abstract Learning from nature, the humpback whale can swim faster than other baleen whales. The humpback whale has the flipper with wavy leading edges (WLE), which has an improvement of hydrodynamic performance. The WLEs have the function to generate vortices to maintain lift and to prevent stall at...
Published in: | IOP Conference Series: Earth and Environmental Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
IOP Publishing
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1088/1755-1315/557/1/012060 https://iopscience.iop.org/article/10.1088/1755-1315/557/1/012060/pdf https://iopscience.iop.org/article/10.1088/1755-1315/557/1/012060 |
id |
crioppubl:10.1088/1755-1315/557/1/012060 |
---|---|
record_format |
openpolar |
spelling |
crioppubl:10.1088/1755-1315/557/1/012060 2024-06-02T08:04:02+00:00 Effect of Wavy Leading Edge with Various Aspect Ratios on a Rectangular Wing Rohmawati, I Arai, H Mutsuda, H Nakashima, T Doi, Y 2020 http://dx.doi.org/10.1088/1755-1315/557/1/012060 https://iopscience.iop.org/article/10.1088/1755-1315/557/1/012060/pdf https://iopscience.iop.org/article/10.1088/1755-1315/557/1/012060 unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining IOP Conference Series: Earth and Environmental Science volume 557, issue 1, page 012060 ISSN 1755-1307 1755-1315 journal-article 2020 crioppubl https://doi.org/10.1088/1755-1315/557/1/012060 2024-05-07T14:00:52Z Abstract Learning from nature, the humpback whale can swim faster than other baleen whales. The humpback whale has the flipper with wavy leading edges (WLE), which has an improvement of hydrodynamic performance. The WLEs have the function to generate vortices to maintain lift and to prevent stall at high angles of attack. This research aim is to find out the WLE effect on hydrodynamic performance in different wing aspect ratios (AR), whose profile is the rectangular wing of NACA 0018 as a baseline wing. The WLE profile was designed by a sinusoidal function. We focused on steady flow conditions in both the experiments and numerical simulations. The experimental work was conducted in the circular water channel at Hiroshima University, Japan. Meanwhile, the numerical work was employed using RANS simulation with SST k-ω turbulence model. Based on the results, we clarified that the increase of AR could possess a higher lift coefficient (Cl), and then physically interpreted the WLE effect on various aspect ratios. This knowledge could be expanded into the application of eco-friendly energy-saving devices such as fin stabilizers of ships and wind turbines to improve hydrodynamic performance. Article in Journal/Newspaper baleen whales Humpback Whale IOP Publishing IOP Conference Series: Earth and Environmental Science 557 1 012060 |
institution |
Open Polar |
collection |
IOP Publishing |
op_collection_id |
crioppubl |
language |
unknown |
description |
Abstract Learning from nature, the humpback whale can swim faster than other baleen whales. The humpback whale has the flipper with wavy leading edges (WLE), which has an improvement of hydrodynamic performance. The WLEs have the function to generate vortices to maintain lift and to prevent stall at high angles of attack. This research aim is to find out the WLE effect on hydrodynamic performance in different wing aspect ratios (AR), whose profile is the rectangular wing of NACA 0018 as a baseline wing. The WLE profile was designed by a sinusoidal function. We focused on steady flow conditions in both the experiments and numerical simulations. The experimental work was conducted in the circular water channel at Hiroshima University, Japan. Meanwhile, the numerical work was employed using RANS simulation with SST k-ω turbulence model. Based on the results, we clarified that the increase of AR could possess a higher lift coefficient (Cl), and then physically interpreted the WLE effect on various aspect ratios. This knowledge could be expanded into the application of eco-friendly energy-saving devices such as fin stabilizers of ships and wind turbines to improve hydrodynamic performance. |
format |
Article in Journal/Newspaper |
author |
Rohmawati, I Arai, H Mutsuda, H Nakashima, T Doi, Y |
spellingShingle |
Rohmawati, I Arai, H Mutsuda, H Nakashima, T Doi, Y Effect of Wavy Leading Edge with Various Aspect Ratios on a Rectangular Wing |
author_facet |
Rohmawati, I Arai, H Mutsuda, H Nakashima, T Doi, Y |
author_sort |
Rohmawati, I |
title |
Effect of Wavy Leading Edge with Various Aspect Ratios on a Rectangular Wing |
title_short |
Effect of Wavy Leading Edge with Various Aspect Ratios on a Rectangular Wing |
title_full |
Effect of Wavy Leading Edge with Various Aspect Ratios on a Rectangular Wing |
title_fullStr |
Effect of Wavy Leading Edge with Various Aspect Ratios on a Rectangular Wing |
title_full_unstemmed |
Effect of Wavy Leading Edge with Various Aspect Ratios on a Rectangular Wing |
title_sort |
effect of wavy leading edge with various aspect ratios on a rectangular wing |
publisher |
IOP Publishing |
publishDate |
2020 |
url |
http://dx.doi.org/10.1088/1755-1315/557/1/012060 https://iopscience.iop.org/article/10.1088/1755-1315/557/1/012060/pdf https://iopscience.iop.org/article/10.1088/1755-1315/557/1/012060 |
genre |
baleen whales Humpback Whale |
genre_facet |
baleen whales Humpback Whale |
op_source |
IOP Conference Series: Earth and Environmental Science volume 557, issue 1, page 012060 ISSN 1755-1307 1755-1315 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1755-1315/557/1/012060 |
container_title |
IOP Conference Series: Earth and Environmental Science |
container_volume |
557 |
container_issue |
1 |
container_start_page |
012060 |
_version_ |
1800748667039121408 |