JP5082093B2 - 船体用摩擦抵抗低減方法 - Google Patents
船体用摩擦抵抗低減方法 Download PDFInfo
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- JP5082093B2 JP5082093B2 JP2006306237A JP2006306237A JP5082093B2 JP 5082093 B2 JP5082093 B2 JP 5082093B2 JP 2006306237 A JP2006306237 A JP 2006306237A JP 2006306237 A JP2006306237 A JP 2006306237A JP 5082093 B2 JP5082093 B2 JP 5082093B2
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- JP
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- Prior art keywords
- air
- hull
- frictional resistance
- air hole
- ship
- Prior art date
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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- Vibration Prevention Devices (AREA)
- Braking Arrangements (AREA)
Description
航行時における船体の摩擦抵抗を低減する船体用摩擦抵抗低減方法であって、
船体の没水表面に空気孔を形成すると共に前記空気孔に対して船体外側に所定距離をもって該空気孔を覆うように平坦な板材により形成された空気導出部を取り付け、前記空気孔から加圧空気が前記空気導出部に供給されるよう空気を前記空気孔に供給することにより、航行時における船体の摩擦抵抗を低減する、
ことを特徴とする。
Ta=Qa/(Ba・U)
Cf=2R/(ρ・U2・S) (2)
Claims (2)
- 航行時における船体の摩擦抵抗を低減する船体用摩擦抵抗低減方法であって、
船体の没水表面に空気孔を形成すると共に前記空気孔に対して船体外側に所定距離をもって該空気孔を覆うように平坦な板材により形成された空気導出部を取り付け、前記空気孔から加圧空気が前記空気導出部に供給されるよう空気を前記空気孔に供給するとともに、前記空気孔の空気の吹き出し幅Baと前記空気孔からの空気流量Qaと船体に対する水の流速Uとに対して次式で表わされる空気相当厚さTaと前記所定距離dとの比(Ta/d)が1.5以上となるよう調整することにより、航行時における船体の摩擦抵抗を低減することを特徴とする船体用摩擦抵抗低減方法。
Ta=Qa/(Ba・U) - 前記空気相当厚さTaが4mm以上となるよう調整することにより航行時における船体の摩擦抵抗を低減することを特徴とする請求項1記載の船体用摩擦抵抗低減方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006306237A JP5082093B2 (ja) | 2006-11-13 | 2006-11-13 | 船体用摩擦抵抗低減方法 |
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JP2006306237A JP5082093B2 (ja) | 2006-11-13 | 2006-11-13 | 船体用摩擦抵抗低減方法 |
Publications (2)
Publication Number | Publication Date |
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JP2008120246A JP2008120246A (ja) | 2008-05-29 |
JP5082093B2 true JP5082093B2 (ja) | 2012-11-28 |
Family
ID=39505484
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JP2006306237A Expired - Fee Related JP5082093B2 (ja) | 2006-11-13 | 2006-11-13 | 船体用摩擦抵抗低減方法 |
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JP (1) | JP5082093B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4212640B1 (ja) | 2008-07-23 | 2009-01-21 | 有限会社ランドエンジニアリング | 摩擦抵抗低減船およびその運転方法 |
EP3315396B1 (en) | 2015-06-29 | 2021-06-23 | Samsung Heavy Industries Co., Ltd. | Frictional resistance-reducing device and ship including same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1159562A (ja) * | 1997-08-25 | 1999-03-02 | Kawasaki Heavy Ind Ltd | 船舶用摩擦抵抗低減装置 |
JP3643703B2 (ja) * | 1998-05-19 | 2005-04-27 | 三菱重工業株式会社 | 摩擦抵抗低減型船舶 |
JP2000272578A (ja) * | 1999-03-19 | 2000-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | 摩擦抵抗低減船 |
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2006
- 2006-11-13 JP JP2006306237A patent/JP5082093B2/ja not_active Expired - Fee Related
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JP2008120246A (ja) | 2008-05-29 |
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