EFD and CFD Design and Analysis of a Propeller in Decelerating Duct
Ducted propellers, in decelerating duct configuration, may represent a possible solution for the designer to reduce cavitation and its side effects, that is, induced pressures and radiated noise; however, their design still presents challenges, due to the complex evaluation of the decelerating duct...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2012/823831 |
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| _version_ | 1832554460666134528 |
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| author | Stefano Gaggero Cesare M. Rizzo Giorgio Tani Michele Viviani |
| author_facet | Stefano Gaggero Cesare M. Rizzo Giorgio Tani Michele Viviani |
| author_sort | Stefano Gaggero |
| collection | DOAJ |
| description | Ducted propellers, in decelerating duct configuration, may represent a possible solution for the designer to reduce cavitation and its side effects, that is, induced pressures and radiated noise; however, their design still presents challenges, due to the complex evaluation of the decelerating duct effects and to the limited amount of available experimental information. In the present paper, a hybrid design approach, adopting a coupled lifting line/panel method solver and a successive refinement with panel solver and optimization techniques, is presented. In order to validate this procedure and provide information about these propulsors, experimental results at towing tank and cavitation tunnel are compared with numerical predictions. Moreover, additional results obtained by means of a commercial RANS solver, not directly adopted in the design loop, are also presented, allowing to stress the relative merits and shortcomings of the different numerical approaches. |
| format | Article |
| id | doaj-art-d53505c61fe54497872506ad93e48cd2 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-d53505c61fe54497872506ad93e48cd22025-02-03T05:51:27ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342012-01-01201210.1155/2012/823831823831EFD and CFD Design and Analysis of a Propeller in Decelerating DuctStefano Gaggero0Cesare M. Rizzo1Giorgio Tani2Michele Viviani3Department of Electrical, Electronic, Telecommunication Engineering and Naval Architecture (DITEN), University of Genoa, Via Montallegro 1, U16145 Genova, ItalyDepartment of Electrical, Electronic, Telecommunication Engineering and Naval Architecture (DITEN), University of Genoa, Via Montallegro 1, U16145 Genova, ItalyDepartment of Electrical, Electronic, Telecommunication Engineering and Naval Architecture (DITEN), University of Genoa, Via Montallegro 1, U16145 Genova, ItalyDepartment of Electrical, Electronic, Telecommunication Engineering and Naval Architecture (DITEN), University of Genoa, Via Montallegro 1, U16145 Genova, ItalyDucted propellers, in decelerating duct configuration, may represent a possible solution for the designer to reduce cavitation and its side effects, that is, induced pressures and radiated noise; however, their design still presents challenges, due to the complex evaluation of the decelerating duct effects and to the limited amount of available experimental information. In the present paper, a hybrid design approach, adopting a coupled lifting line/panel method solver and a successive refinement with panel solver and optimization techniques, is presented. In order to validate this procedure and provide information about these propulsors, experimental results at towing tank and cavitation tunnel are compared with numerical predictions. Moreover, additional results obtained by means of a commercial RANS solver, not directly adopted in the design loop, are also presented, allowing to stress the relative merits and shortcomings of the different numerical approaches.http://dx.doi.org/10.1155/2012/823831 |
| spellingShingle | Stefano Gaggero Cesare M. Rizzo Giorgio Tani Michele Viviani EFD and CFD Design and Analysis of a Propeller in Decelerating Duct International Journal of Rotating Machinery |
| title | EFD and CFD Design and Analysis of a Propeller in Decelerating Duct |
| title_full | EFD and CFD Design and Analysis of a Propeller in Decelerating Duct |
| title_fullStr | EFD and CFD Design and Analysis of a Propeller in Decelerating Duct |
| title_full_unstemmed | EFD and CFD Design and Analysis of a Propeller in Decelerating Duct |
| title_short | EFD and CFD Design and Analysis of a Propeller in Decelerating Duct |
| title_sort | efd and cfd design and analysis of a propeller in decelerating duct |
| url | http://dx.doi.org/10.1155/2012/823831 |
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