Effect of Bolsters on Ship Propulsive Performance in Actual Seas

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  • Tsujimoto Masaru
    国立研究開発法人海上・港湾・航空技術研究所海上技術安全研究所
  • Sakurada Akiko
    国立研究開発法人海上・港湾・航空技術研究所海上技術安全研究所
  • Kuroda Mariko
    国立研究開発法人海上・港湾・航空技術研究所海上技術安全研究所

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Other Title
  • ボルスターが実海域推進性能に及ぼす影響
  • ボルスター ガ ジツ カイイキ スイシン セイノウ ニ オヨボス エイキョウ

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<p>These days ship designers make efforts to improve the ship propulsive performance in actual seas. To reduce added resistance due to waves the bow shape above water is important factor. Some ships install the bolsters at the bow, however, it is thought that waves acting on the bolsters affect the propulsive performance in actual seas. Thus tank tests in waves using a model ship with two types of the bolsters and without bolsters were carried out and the influence of bolsters on the propulsive performance was examined.</p><p>As a result, it is found that the increment of added resistance in waves is not so large since the bolster interfered with the waves reflected by the hull.</p>

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