The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance
Taking inspiration from previous biomimetic studies on the performance of humpback whale flippers, this paper reports a programme of work to design a ‘whale-fan’ that incorporates a sinusoidal leading-edge blade profile that mimics the tubercles on humpback whales flippers. Previous researchers have...
Published in: | Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy |
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crsagepubl:10.1177/0957650913514229 2023-05-15T16:36:05+02:00 The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance Corsini, Alessandro Delibra, Giovanni Sheard, Anthony G 2013 http://dx.doi.org/10.1177/0957650913514229 http://journals.sagepub.com/doi/pdf/10.1177/0957650913514229 http://journals.sagepub.com/doi/full-xml/10.1177/0957650913514229 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy volume 228, issue 3, page 255-271 ISSN 0957-6509 2041-2967 Mechanical Engineering Energy Engineering and Power Technology journal-article 2013 crsagepubl https://doi.org/10.1177/0957650913514229 2022-07-03T16:07:59Z Taking inspiration from previous biomimetic studies on the performance of humpback whale flippers, this paper reports a programme of work to design a ‘whale-fan’ that incorporates a sinusoidal leading-edge blade profile that mimics the tubercles on humpback whales flippers. Previous researchers have used two-dimensional cascades of aerofoils to study the effects of a sinusoidal profile on aerofoil lift and drag performance. The research was primarily concerned with elucidating the fluid-flow mechanisms induced by the sinusoidal profile and the impact of those mechanisms on aerofoil performance. The results indicate that a sinusoidal leading-edge profile has improved lift recovery post-stall and, thus, is inherently more aerodynamically resistant to the effect of stall. The reported research focuses on the application of previous research conducted with infinite span cascades of aerofoils to the design and optimisation of a finite span aerofoil. The paper presents the assumptions when developing a three-dimensional aerofoil-design methodology that correlates the sinusoidal profile of the blade-leading edge with the desired vorticity distribution at the trailing edge. The authors apply the developed methodology to the design of a fan blade’s tip region to control separation at the trailing edge. The paper presents numerically derived whale-fan performance characteristics and compares them with both numerically and experimentally derived performance characteristics of the baseline fan. Article in Journal/Newspaper Humpback Whale SAGE Publications (via Crossref) Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 228 3 255 271 |
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Open Polar |
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SAGE Publications (via Crossref) |
op_collection_id |
crsagepubl |
language |
English |
topic |
Mechanical Engineering Energy Engineering and Power Technology |
spellingShingle |
Mechanical Engineering Energy Engineering and Power Technology Corsini, Alessandro Delibra, Giovanni Sheard, Anthony G The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance |
topic_facet |
Mechanical Engineering Energy Engineering and Power Technology |
description |
Taking inspiration from previous biomimetic studies on the performance of humpback whale flippers, this paper reports a programme of work to design a ‘whale-fan’ that incorporates a sinusoidal leading-edge blade profile that mimics the tubercles on humpback whales flippers. Previous researchers have used two-dimensional cascades of aerofoils to study the effects of a sinusoidal profile on aerofoil lift and drag performance. The research was primarily concerned with elucidating the fluid-flow mechanisms induced by the sinusoidal profile and the impact of those mechanisms on aerofoil performance. The results indicate that a sinusoidal leading-edge profile has improved lift recovery post-stall and, thus, is inherently more aerodynamically resistant to the effect of stall. The reported research focuses on the application of previous research conducted with infinite span cascades of aerofoils to the design and optimisation of a finite span aerofoil. The paper presents the assumptions when developing a three-dimensional aerofoil-design methodology that correlates the sinusoidal profile of the blade-leading edge with the desired vorticity distribution at the trailing edge. The authors apply the developed methodology to the design of a fan blade’s tip region to control separation at the trailing edge. The paper presents numerically derived whale-fan performance characteristics and compares them with both numerically and experimentally derived performance characteristics of the baseline fan. |
format |
Article in Journal/Newspaper |
author |
Corsini, Alessandro Delibra, Giovanni Sheard, Anthony G |
author_facet |
Corsini, Alessandro Delibra, Giovanni Sheard, Anthony G |
author_sort |
Corsini, Alessandro |
title |
The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance |
title_short |
The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance |
title_full |
The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance |
title_fullStr |
The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance |
title_full_unstemmed |
The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance |
title_sort |
application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance |
publisher |
SAGE Publications |
publishDate |
2013 |
url |
http://dx.doi.org/10.1177/0957650913514229 http://journals.sagepub.com/doi/pdf/10.1177/0957650913514229 http://journals.sagepub.com/doi/full-xml/10.1177/0957650913514229 |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_source |
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy volume 228, issue 3, page 255-271 ISSN 0957-6509 2041-2967 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0957650913514229 |
container_title |
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy |
container_volume |
228 |
container_issue |
3 |
container_start_page |
255 |
op_container_end_page |
271 |
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1766026397142220800 |