GB1119152A - Method and apparatus for drag reduction on water-borne vehicles - Google Patents

Method and apparatus for drag reduction on water-borne vehicles

Info

Publication number
GB1119152A
GB1119152A GB12283/66A GB1228366A GB1119152A GB 1119152 A GB1119152 A GB 1119152A GB 12283/66 A GB12283/66 A GB 12283/66A GB 1228366 A GB1228366 A GB 1228366A GB 1119152 A GB1119152 A GB 1119152A
Authority
GB
United Kingdom
Prior art keywords
water
drag
liquid
drag reduction
vehicle
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB12283/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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 US451933A external-priority patent/US3303811A/en
Priority claimed from US451763A external-priority patent/US3303810A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1119152A publication Critical patent/GB1119152A/en
Expired legal-status Critical Current

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 
    • 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)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Traffic Control Systems (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

1,119,152. Reducing drag on water vehicles. GENERAL ELECTRIC CO. 21 March, 1966 [29 April, 1965 (2)], No. 12283/66. Headings B7A and B7M. The drag on water vehicles (i.e. on the submerged surface of surface vessels, underwater craft or the hydrofoils of hydrofoil craft) is reduced by adding (from a source 4) a drag reducing liquid to the water (at 2) proximate the surface 5 of a water vehicle 1 to reduce the frictional drag thereon, and ejecting (at 8) a liquid, e.g. water, in the general direction of the flow stream to deflect the flow stream 3 of said drag reducing liquid so that it passes through critical points 6 of disturbance to thereby substantially eliminate the formation of a turbulent boundary layer proximate the surface 10 of the vehicle to substantially reduce frictional drag with a minimum use of the drag reducing liquid.
GB12283/66A 1965-04-29 1966-03-21 Method and apparatus for drag reduction on water-borne vehicles Expired GB1119152A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US451933A US3303811A (en) 1965-04-29 1965-04-29 Method and apparatus for drag reduction
US451763A US3303810A (en) 1965-04-29 1965-04-29 Additive drag reduction with recirculation

Publications (1)

Publication Number Publication Date
GB1119152A true GB1119152A (en) 1968-07-10

Family

ID=27036511

Family Applications (2)

Application Number Title Priority Date Filing Date
GB12283/66A Expired GB1119152A (en) 1965-04-29 1966-03-21 Method and apparatus for drag reduction on water-borne vehicles
GB51464/67A Expired GB1119153A (en) 1965-04-29 1966-03-21 Improvements in method and apparatus for drag reduction on water vehicles

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB51464/67A Expired GB1119153A (en) 1965-04-29 1966-03-21 Improvements in method and apparatus for drag reduction on water vehicles

Country Status (3)

Country Link
CH (2) CH452376A (en)
DE (1) DE1781369A1 (en)
GB (2) GB1119152A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225754A (en) * 1988-12-08 1990-06-13 Plessey Co Plc Marine body exhibiting low fluid friction
WO2002008051A3 (en) * 2000-07-21 2002-04-25 Kenneth J Moore Method and apparatus for increasing the effectiveness and efficiency of multiple boundary layer control techniques
CN112478043A (en) * 2020-11-19 2021-03-12 江苏科技大学 Angle-adjustable damping device based on artificial puffer fish body thorns
CN115649399A (en) * 2022-11-21 2023-01-31 中国船舶科学研究中心 Underwater navigation body capable of delaying transition of boundary layer by using hydrogel and preparation method thereof
CN116853410A (en) * 2023-08-09 2023-10-10 中国船舶科学研究中心 Synergistic drag reduction method for reducing resistance of underwater vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2251468B3 (en) * 1972-10-20 2008-02-28 Licentia Patent-Verwaltungs-Gmbh Water vehicle e.g. ship, drive efficiency improving method, involves reducing frictional resistance of rotary drive propeller by adding water-soluble, flowable, strong polar and linear polymer of high molecular weight in boundary layer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2225754A (en) * 1988-12-08 1990-06-13 Plessey Co Plc Marine body exhibiting low fluid friction
WO2002008051A3 (en) * 2000-07-21 2002-04-25 Kenneth J Moore Method and apparatus for increasing the effectiveness and efficiency of multiple boundary layer control techniques
CN112478043A (en) * 2020-11-19 2021-03-12 江苏科技大学 Angle-adjustable damping device based on artificial puffer fish body thorns
CN115649399A (en) * 2022-11-21 2023-01-31 中国船舶科学研究中心 Underwater navigation body capable of delaying transition of boundary layer by using hydrogel and preparation method thereof
CN115649399B (en) * 2022-11-21 2023-08-29 中国船舶科学研究中心 Preparation method of underwater vehicle by utilizing hydrogel to delay transition of boundary layer
CN116853410A (en) * 2023-08-09 2023-10-10 中国船舶科学研究中心 Synergistic drag reduction method for reducing resistance of underwater vehicle
CN116853410B (en) * 2023-08-09 2024-05-14 中国船舶科学研究中心 Synergistic drag reduction method for reducing resistance of underwater vehicle

Also Published As

Publication number Publication date
GB1119153A (en) 1968-07-10
DE1781369A1 (en) 1970-12-03
CH452376A (en) 1968-05-31
CH466740A (en) 1968-12-15

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