efd and cfd design and analysis of a propeller in decelerating duct
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ID: 136466
2012
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Abstract
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.
| Reference Key |
gaggero2012internationalefd
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|---|---|
| Authors | ;Stefano Gaggero;Cesare M. Rizzo;Giorgio Tani;Michele Viviani |
| Journal | ACS omega |
| Year | 2012 |
| DOI |
10.1155/2012/823831
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