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 resear...
Published in: | Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy |
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Online Access: | http://hdl.handle.net/11573/559966 https://doi.org/10.1177/0957650913514229 |
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ftunivromairis:oai:iris.uniroma1.it:11573/559966 2024-01-28T10:06:22+01:00 The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance CORSINI, Alessandro DELIBRA, GIOVANNI A. G. Sheard Corsini, Alessandro Delibra, Giovanni A. G., Sheard 2014 STAMPA http://hdl.handle.net/11573/559966 https://doi.org/10.1177/0957650913514229 eng eng SAGE PUBLICATIONS LTD info:eu-repo/semantics/altIdentifier/wos/WOS:000333464300003 volume:228 issue:3 firstpage:255 lastpage:271 numberofpages:17 journal:PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS. PART A, JOURNAL OF POWER AND ENERGY http://hdl.handle.net/11573/559966 doi:10.1177/0957650913514229 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84899079607 bio-mimicry computational method design methodology fan blade design industrial fan info:eu-repo/semantics/article 2014 ftunivromairis https://doi.org/10.1177/0957650913514229 2024-01-03T17:56:13Z 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 Sapienza Università di Roma: CINECA IRIS Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 228 3 255 271 |
institution |
Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
topic |
bio-mimicry computational method design methodology fan blade design industrial fan |
spellingShingle |
bio-mimicry computational method design methodology fan blade design industrial fan CORSINI, Alessandro DELIBRA, GIOVANNI A. G. Sheard The application of sinusoidal blade-leading edges in a fan-design methodology to improve stall resistance |
topic_facet |
bio-mimicry computational method design methodology fan blade design industrial fan |
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. |
author2 |
Corsini, Alessandro Delibra, Giovanni A. G., Sheard |
format |
Article in Journal/Newspaper |
author |
CORSINI, Alessandro DELIBRA, GIOVANNI A. G. Sheard |
author_facet |
CORSINI, Alessandro DELIBRA, GIOVANNI A. G. Sheard |
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 LTD |
publishDate |
2014 |
url |
http://hdl.handle.net/11573/559966 https://doi.org/10.1177/0957650913514229 |
genre |
Humpback Whale |
genre_facet |
Humpback Whale |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000333464300003 volume:228 issue:3 firstpage:255 lastpage:271 numberofpages:17 journal:PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS. PART A, JOURNAL OF POWER AND ENERGY http://hdl.handle.net/11573/559966 doi:10.1177/0957650913514229 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84899079607 |
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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