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NO982515L - FremgangsmÕte for Õ redusere et skrogs friksjonsmotstand - Google Patents

FremgangsmÕte for Õ redusere et skrogs friksjonsmotstand

Info

Publication number
NO982515L
NO982515L NO982515A NO982515A NO982515L NO 982515 L NO982515 L NO 982515L NO 982515 A NO982515 A NO 982515A NO 982515 A NO982515 A NO 982515A NO 982515 L NO982515 L NO 982515L
Authority
NO
Norway
Prior art keywords
hull
ship
reducing
microbubbles
frictional resistance
Prior art date
Application number
NO982515A
Other languages
English (en)
Other versions
NO982515D0 (no
Inventor
Hiroharu Kato
Yoshiaki Takahashi
Yuki Yoshida
Akira Masuko
Osamu Watanabe
Original Assignee
Hiroharu Kato
Ishikawajima Harima Heavy Ind
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP7337724A external-priority patent/JPH09156575A/ja
Priority claimed from JP7337723A external-priority patent/JPH09156574A/ja
Priority claimed from JP35444995A external-priority patent/JP3185047B2/ja
Priority claimed from JP8039140A external-priority patent/JPH09207874A/ja
Priority claimed from JP14464696A external-priority patent/JP3172094B2/ja
Priority claimed from PCT/JP1996/002101 external-priority patent/WO1997020727A1/ja
Application filed by Hiroharu Kato, Ishikawajima Harima Heavy Ind filed Critical Hiroharu Kato
Publication of NO982515D0 publication Critical patent/NO982515D0/no
Publication of NO982515L publication Critical patent/NO982515L/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00—Designing vessels; Predicting their performance
    • B63B71/10—Designing vessels; Predicting their performance using computer simulation, e.g. finite element method [FEM] or computational fluid dynamics [CFD]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/10—Influencing flow of fluids around bodies of solid material
    • F15D1/12—Influencing flow of fluids around bodies of solid material by influencing the boundary layer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
    • B63B2001/387—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes using means for producing a film of air or air bubbles over at least a significant portion of the hull surface
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)

Abstract

En fremgangsmåte for å redusere friksjonsmotstanden i et skips (1) skrog (2) er kjennetegnet ved at fremgangsmåten omfatter det å sende ut mikrobobler (8) som har forutbestemte diametere der mikroboblene (8) blir sendt ut i vannet fra en posisjon nær inntil utgangspunktet for en ønsket vannstrømningslinje (F.L.) og fra den posisjon hvor det statiske trykk er lavt; strømningslinjen (F.L.) blir rettet, fra den nedykkede, grunne posisjon ved et stevnparti (4) av skipets skrog (2) til skipets bunn (5) langs begge sideflater av skipsskroget (2), slik at de utsendte mikrobobler (8) blir overført til skipets bunn (5) langs strømningslinjen (F.L.); hvorved mikroboblene (8) blir fordelt ved minst en del av omkretsarealet av det neddykkede parti av skroget (2), som således reduserer friksjonsmotstanden ved et skips (1) skrog (2) mens det kruser.
NO982515A 1995-12-04 1998-06-02 FremgangsmÕte for Õ redusere et skrogs friksjonsmotstand NO982515L (no)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP7337724A JPH09156575A (ja) 1995-12-04 1995-12-04 摩擦抵抗低減船
JP7337723A JPH09156574A (ja) 1995-12-04 1995-12-04 船舶の摩擦抵抗低減方法
JP35444995A JP3185047B2 (ja) 1995-12-28 1995-12-28 船体摩擦抵抗低減方法
JP8039140A JPH09207874A (ja) 1996-02-02 1996-02-02 マイクロバブル発生装置
JP14464696A JP3172094B2 (ja) 1996-06-06 1996-06-06 船舶における噴出気泡の解析方法
PCT/JP1996/002101 WO1997020727A1 (fr) 1995-12-04 1996-07-26 Procede pour diminuer la resistance a la friction d'une coque de bateau et bateau a resitance a la friction reduite utilisant ce procede
PCT/JP1996/003526 WO1997020728A1 (fr) 1995-12-04 1996-12-03 Procede de reduction de la resistance a la friction de la coque d'un navire, navire auquel est applique ce procede et procede d'analyse des jets de bulles diriges a la surface du navire

Publications (2)

Publication Number Publication Date
NO982515D0 NO982515D0 (no) 1998-06-02
NO982515L true NO982515L (no) 1998-07-24

Family

ID=27521986

Family Applications (1)

Application Number Title Priority Date Filing Date
NO982515A NO982515L (no) 1995-12-04 1998-06-02 FremgangsmÕte for Õ redusere et skrogs friksjonsmotstand

Country Status (8)

Country Link
US (1) US6186085B1 (no)
EP (1) EP0865985A4 (no)
KR (1) KR19990071792A (no)
CN (1) CN1091719C (no)
CA (1) CA2238036A1 (no)
FI (1) FI981259L (no)
NO (1) NO982515L (no)
WO (1) WO1997020728A1 (no)

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JPH11124078A (ja) * 1997-10-24 1999-05-11 Ishikawajima Harima Heavy Ind Co Ltd 船体における気泡の被覆状態シミュレーション方法及び装置並びにその被覆状態シミュレーションプログラムが記憶されたコンピュータによって読み取り可能な記憶媒体
JPH11342889A (ja) * 1998-06-03 1999-12-14 Ishikawajima Harima Heavy Ind Co Ltd 船舶における気泡による摩擦抵抗低減効果の解析方法
EP1565659B1 (en) * 2002-11-25 2007-11-14 Vida, Nikolaus, Dr. Method and device for generating mixtures of fluids in a boundary layer
DE102004024343A1 (de) * 2004-05-17 2005-12-22 New-Logistics Gmbh Verfahren und Vorrichtung zur Verminderung der Wasserreibung an einem Schiffskörper eines Schiffes
US8677918B2 (en) 2008-01-10 2014-03-25 Lawrence Harbin Marine vessel having reduced skin friction drag
US8196536B1 (en) 2008-01-10 2012-06-12 Lawrence Harbin Apparatus to reduce skin friction drag on a marine vessel
CN101990511B (zh) * 2008-04-01 2015-04-29 独立行政法人海上技术安全研究所 船舶的摩擦阻力减小装置
US7874258B2 (en) * 2008-04-29 2011-01-25 Zuei-Ling Lin Method of reducing frictional resistance between ship body and water by releasing gases in water
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
JP5022346B2 (ja) * 2008-11-21 2012-09-12 三菱重工業株式会社 船体摩擦抵抗低減装置
US7730838B1 (en) * 2009-01-30 2010-06-08 Raytheon Company Buoyancy dissipater and method to deter an errant vessel
US8327784B2 (en) 2009-03-23 2012-12-11 Dan Nicolaus Costas Apparatus for generating and distributing compressed air for reducing drag
US7997221B2 (en) * 2009-03-23 2011-08-16 Dan Nicolaus Costas Apparatus for reducing drag on a nautical vessel
US8402895B2 (en) 2010-04-30 2013-03-26 Raytheon Company Vortice amplified diffuser for buoyancy dissipater and method for selectable diffusion
US8371204B2 (en) 2010-04-30 2013-02-12 Raytheon Company Bubble weapon system and methods for inhibiting movement and disrupting operations of vessels
DK201070283A (en) * 2010-06-22 2012-02-02 Maersk Olie & Gas Reducing drag of a hull of a ship
CN101907510B (zh) * 2010-06-29 2011-10-26 中国船舶重工集团公司第七〇二研究所 气泡船模拖曳试验方法
JP5705486B2 (ja) * 2010-09-27 2015-04-22 三菱重工業株式会社 船舶の空気潤滑システム
CN102951255B (zh) * 2011-08-17 2017-05-31 林瑞麟 降低船只方向舵阻力的方法
CN103085937B (zh) * 2011-11-01 2015-07-15 李僖年 单轮式泄压加速器
US8893634B2 (en) * 2012-04-27 2014-11-25 Lawrence Harbin Self-powered slip plate to reduce skin-friction drag on a marine vessel
US8763547B2 (en) 2012-07-25 2014-07-01 Dan Nicolaus Costas Apparatus for lowering drag on a moving nautical vessel
CN102849195B (zh) * 2012-09-18 2016-03-02 南通中远川崎船舶工程有限公司 一种船首导流管装置
CN102998087B (zh) * 2012-11-27 2015-04-08 哈尔滨工程大学 一种适应于射流表面及非光滑表面的阻力测试装置
JP5599482B1 (ja) * 2013-03-25 2014-10-01 三井造船株式会社 気泡型抵抗低減装置を備えた船舶及び船舶の抵抗低減方法
SG11201607337TA (en) * 2014-03-05 2016-10-28 Silverstream Technologies B V Use of an air lubrication system for reducing marine growth on a vessel
EP2915735B1 (en) * 2014-03-05 2016-05-04 Silverstream Technologies B.V. Air lubrication system and vessel comprising such a system.
WO2015189660A1 (en) 2014-06-11 2015-12-17 Monotricat Srl C.R. Hull for low drag boats
EP3315396B1 (en) * 2015-06-29 2021-06-23 Samsung Heavy Industries Co., Ltd. Frictional resistance-reducing device and ship including same
CN108181086B (zh) * 2015-12-08 2019-10-22 中国人民解放军海军工程大学 一种变水深拖曳水池气层减阻试验方法
CN106114750B (zh) * 2016-08-25 2018-05-15 武汉理工大学 基于气泡减阻与m船型复合的智能控制系统及控制方法
EP3290324A1 (en) * 2016-08-30 2018-03-07 Silverstream Technologies B.V. Dual cavity air lubrication system
CN106767910B (zh) * 2016-12-01 2020-11-13 浙江海洋大学 一种用于工程船计程仪传感器测试工装
CN107054557B (zh) * 2017-04-27 2019-03-15 中国船舶工业集团公司第七0八研究所 一种防气泡隐形球首一体化设计的科考船型
CN109131720A (zh) * 2018-09-01 2019-01-04 哈尔滨工程大学 一种水中高速运动体微气泡减阻结构
SG11202105277XA (en) 2018-11-19 2021-06-29 Arcusin Carlos E A floating structure for transport formed by a tandem arrangement of rotating bodies of revolution that reduces advance resistancethereof during its navigation
ES2941493T3 (es) 2018-11-19 2023-05-23 Arcusin Carlos E Disposición de proa y/o popa para disminuir la resistencia al avance de una embarcación durante su navegación
KR102121833B1 (ko) 2018-11-22 2020-06-11 한국해양과학기술원 선형정보에 기반한 부유빙의 마찰저항 산출 시스템 및 산출 방법
CN111220501B (zh) * 2019-12-04 2022-04-29 西南石油大学 一种输油管道中减阻剂减阻效果的在线评价方法
CN112362299B (zh) * 2020-11-02 2023-03-21 哈尔滨工程大学 一种减压状态下的被动排气气泡融合实验装置及方法
CN112918614B (zh) * 2021-01-22 2022-03-29 中国人民解放军国防科技大学 超空泡航行体及其利用尾流引射的空泡流动控制方法
CN113799940B (zh) * 2021-10-21 2023-11-03 中国船舶工业集团公司第七0八研究所 利用集中力模拟集装箱载荷进行垂向静水剪力计算的方法
CN114509239B (zh) * 2022-01-20 2023-01-03 哈尔滨工程大学 一种可适配重复实验位置偏差的航行体出水发射筒装置
CN114813035B (zh) * 2022-04-12 2023-03-21 厦门大学 一种热表面空化增效减阻试验装置及方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170094U (ja) 1983-04-29 1984-11-14 三菱重工業株式会社 船首構造
JPS62102797U (no) 1985-12-20 1987-06-30
JPH0621315B2 (ja) 1986-01-06 1994-03-23 住友電気工業株式会社 ｃＢＮ焼結体およびその製造方法
JPS62268793A (ja) 1986-05-15 1987-11-21 Nippon Kokan Kk <Nkk> 船舶における摩擦抵抗低減装置
KR890700508A (ko) 1987-02-24 1989-04-25 얼프 헤리 스탠포드 선수박막
JPH04177140A (ja) 1990-11-09 1992-06-24 Mitsubishi Heavy Ind Ltd 泡径調節型水中気泡発生装置
JP2500014B2 (ja) 1991-12-05 1996-05-29 富士エンヂニアリング株式会社 プレスラインの被成型部材搬送装置
KR100188464B1 (ko) * 1993-05-11 1999-06-01 다께이 도시후미 항주체의 마찰을 감소시키는 방법과 마찰저감 항주체 및 마찰을 감소시키기 위한 미소기포 발생방법과 그 장치
JPH07156859A (ja) * 1993-05-11 1995-06-20 Yoji Kato 航走体の摩擦を低減する方法及び摩擦低減航走体と摩擦低減に使用するマイクロバブルの発生方法及びその装置
JP2599278Y2 (ja) 1993-12-27 1999-08-30 三菱重工業株式会社 気泡発生装置付き船舶

Also Published As

Publication number Publication date
CN1091719C (zh) 2002-10-02
US6186085B1 (en) 2001-02-13
FI981259L (fi) 1998-07-31
WO1997020728A1 (fr) 1997-06-12
NO982515D0 (no) 1998-06-02
CA2238036A1 (en) 1997-06-12
KR19990071792A (ko) 1999-09-27
FI981259A0 (fi) 1996-12-03
CN1208384A (zh) 1999-02-17
EP0865985A1 (en) 1998-09-23
EP0865985A4 (en) 2000-11-02

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