Wake optimization of ducted propeller
| Autor: | A. Koval, A. Maslova, V. Bushkovsky |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
duct struts
animal structures musculoskeletal neural and ocular physiology technology industry and agriculture lcsh:Naval architecture. Shipbuilding. Marine engineering macromolecular substances unsteady forces Wake wake field body regions lcsh:VM1-989 Ducted propeller ducted propeller Geology Marine engineering |
| Zdroj: | Труды Крыловского государственного научного центра, Vol 395, Iss 1, Pp 79-84 (2021) |
| ISSN: | 2618-8244 2542-2324 |
| Popis: | Object and purpose of research. This paper discusses marine ducted propeller and the ways to ensure its target performance parameters. The purpose of this study was to mitigate unsteady forces on the propeller behind the duct struts. Materials and methods. Analytical estimates of propeller parameters and in-house KSRC methods for numerical simulation of ducted propeller behaviour. Main results. Calculations of effective wake behind duct struts taking into account the flow around hull and its append-ages. Calculations of unsteady forces for a standard propeller operating in this wake. Design of a propeller with increased blade skew. Calculations of unsteady forces for the new propeller in the initial wake. Wake field parameters contributing to mitigation of unsteady forces. Calculations for the new strut shape for wake optimization. Calculations of unsteady force amplitudes for standard propeller in the new wake. Conclusion. Ducted propeller discussed in this study was meant to illustrate how propeller wake properties, like unsteady forces, can be optimized without changing propeller geometry, only by means of curved duct struts. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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