Design optimization and comparative evaluation of oval and toroidal propeller geometries versus a conventional propeller.
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| Title: | Design optimization and comparative evaluation of oval and toroidal propeller geometries versus a conventional propeller. |
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| Authors: | Nasr, Rayn1 jihad.rishmany@balamand.edu.lb, Shreif, Majd2, Jaoude, Enrico Abou2, Ahmar, Celine2, Rishmany, Jihad2 |
| Source: | Sound & Vibration. 2026, Vol. 60 Issue 2, p1-33. 33p. |
| Subjects: | Propellers, Noise control, Aerial propellers, Computer simulation, Aerodynamics, Testing laboratories |
| Abstract: | Drones are increasingly used in delivery, aerial imaging, search and rescue, and agricultural monitoring due to their low cost, low emissions, and ability to reach hazardous or hard-to-access locations. However, a major limitation is the high noise produced by conventional propellers as they interact with the air. Recently, toroidal propellers have emerged as a promising alternative, offering aerodynamic benefits that can reduce noise while maintaining or improving thrust generation. This study investigates the performance of toroidal propellers, both circular and oval, compared to a conventional propeller. The assessment focuses on thrust production, efficiency, and noise emission using both experimental testing and numerical simulations. Results indicate that toroidal propellers provide notable advantages. Experiments showed approximately a 15 dB noise reduction and up to a fourfold increase in thrust relative to the conventional design. Simulations revealed that the oval toroidal propeller achieved the lowest noise level at 29.54 dB, while the circular design produced higher noise but delivered the greatest thrust, reaching 44.08 N. Overall, the study demonstrates that toroidal propellers can significantly enhance drone performance. The optimal choice between oval and circular designs depends on specific mission requirements, balancing noise reduction against thrust demand. [ABSTRACT FROM AUTHOR] |
| Copyright of Sound & Vibration is the property of Academic Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 193687727 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Design optimization and comparative evaluation of oval and toroidal propeller geometries versus a conventional propeller. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Nasr%2C+Rayn%22">Nasr, Rayn</searchLink><relatesTo>1</relatesTo><i> jihad.rishmany@balamand.edu.lb</i><br /><searchLink fieldCode="AR" term="%22Shreif%2C+Majd%22">Shreif, Majd</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Jaoude%2C+Enrico+Abou%22">Jaoude, Enrico Abou</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ahmar%2C+Celine%22">Ahmar, Celine</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Rishmany%2C+Jihad%22">Rishmany, Jihad</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Sound+%26+Vibration%22">Sound & Vibration</searchLink>. 2026, Vol. 60 Issue 2, p1-33. 33p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Propellers%22">Propellers</searchLink><br /><searchLink fieldCode="DE" term="%22Noise+control%22">Noise control</searchLink><br /><searchLink fieldCode="DE" term="%22Aerial+propellers%22">Aerial propellers</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Aerodynamics%22">Aerodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Testing+laboratories%22">Testing laboratories</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Drones are increasingly used in delivery, aerial imaging, search and rescue, and agricultural monitoring due to their low cost, low emissions, and ability to reach hazardous or hard-to-access locations. However, a major limitation is the high noise produced by conventional propellers as they interact with the air. Recently, toroidal propellers have emerged as a promising alternative, offering aerodynamic benefits that can reduce noise while maintaining or improving thrust generation. This study investigates the performance of toroidal propellers, both circular and oval, compared to a conventional propeller. The assessment focuses on thrust production, efficiency, and noise emission using both experimental testing and numerical simulations. Results indicate that toroidal propellers provide notable advantages. Experiments showed approximately a 15 dB noise reduction and up to a fourfold increase in thrust relative to the conventional design. Simulations revealed that the oval toroidal propeller achieved the lowest noise level at 29.54 dB, while the circular design produced higher noise but delivered the greatest thrust, reaching 44.08 N. Overall, the study demonstrates that toroidal propellers can significantly enhance drone performance. The optimal choice between oval and circular designs depends on specific mission requirements, balancing noise reduction against thrust demand. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Sound & Vibration is the property of Academic Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.59400/sv3889 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 33 StartPage: 1 Subjects: – SubjectFull: Propellers Type: general – SubjectFull: Noise control Type: general – SubjectFull: Aerial propellers Type: general – SubjectFull: Computer simulation Type: general – SubjectFull: Aerodynamics Type: general – SubjectFull: Testing laboratories Type: general Titles: – TitleFull: Design optimization and comparative evaluation of oval and toroidal propeller geometries versus a conventional propeller. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Nasr, Rayn – PersonEntity: Name: NameFull: Shreif, Majd – PersonEntity: Name: NameFull: Jaoude, Enrico Abou – PersonEntity: Name: NameFull: Ahmar, Celine – PersonEntity: Name: NameFull: Rishmany, Jihad IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 15410161 Numbering: – Type: volume Value: 60 – Type: issue Value: 2 Titles: – TitleFull: Sound & Vibration Type: main |
| ResultId | 1 |
