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| Study on EnergySaving Rudder Bulb Fin Combination Based on Surface Panel Method |
| LIU Ye-Bao, SU Yu-Min, SHEN Hai-Long, JU Lei |
| (State Key Laboratory of Autonomous Underwater Vehicle, Harbin Engineering University, Harbin 150001, China) |
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Abstract Rudderbulbfin is a kind of simple combined energysaving device. According to the method of propellerrudder system performance calculation, the steady interference between propeller and rudderbulbfin system in uniform flow was predicted by potential based surface panel method. The energysaving effect of rudder with bulbfin was compared with common rudder and rudder with bulb. Changing dimensions, the principal parameters (bulb size, fin size and installation angle) that affect energysaving effect was studied. The theoretical studies show that the energysaving effect of rudderbulbfin is better than that of rudderbulb and the design of rudderbulbfin has optimal bulb size, fin size and installation angle.
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Received: 29 March 2011
Published: 30 March 2012
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