GB730121A - Improvements in bodies adapted to have relative motion with respect to a fluid - Google Patents

Improvements in bodies adapted to have relative motion with respect to a fluid

Info

Publication number
GB730121A
GB730121A GB13594/53A GB1359453A GB730121A GB 730121 A GB730121 A GB 730121A GB 13594/53 A GB13594/53 A GB 13594/53A GB 1359453 A GB1359453 A GB 1359453A GB 730121 A GB730121 A GB 730121A
Authority
GB
United Kingdom
Prior art keywords
fluid
relative motion
indentation
indentations
respect
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
GB13594/53A
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to GB13594/53A priority Critical patent/GB730121A/en
Publication of GB730121A publication Critical patent/GB730121A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/10—Influencing air flow over aircraft surfaces by affecting boundary layer flow using other surface properties, e.g. roughness
    • 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
    • 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
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction
    • 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

Abstract

730,121. Control of fluid boundary layers. GRAY, V. C. D. May 7, 1954 [May 15, 1953], No. 13594/53. Class 4. A body having or adapted to have relative motion with respect to a fluid has the surface 1 of the body in contact with the fluid formed with a plurality of regularly spaced smooth cup shaped indentations 2 such that, at or about a predetermined relative speed, elastic waves set up in the fluid by the relative motion thereof against one indentation and reflected back to the surface will be again reflected in turn by another indentation, whereby a fluid layer adjacent the surface is maintained in oscillatory motion. The indentations are arranged in rows 3, 4, 5 &c., parallel to the lines of normal flow over the body spaced by half the width of an indentation and indentations in adjacent rows are staggered as shown in Fig. 1.
GB13594/53A 1953-05-15 1953-05-15 Improvements in bodies adapted to have relative motion with respect to a fluid Expired GB730121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13594/53A GB730121A (en) 1953-05-15 1953-05-15 Improvements in bodies adapted to have relative motion with respect to a fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13594/53A GB730121A (en) 1953-05-15 1953-05-15 Improvements in bodies adapted to have relative motion with respect to a fluid

Publications (1)

Publication Number Publication Date
GB730121A true GB730121A (en) 1955-05-18

Family

ID=10025824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13594/53A Expired GB730121A (en) 1953-05-15 1953-05-15 Improvements in bodies adapted to have relative motion with respect to a fluid

Country Status (1)

Country Link
GB (1) GB730121A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139247A (en) * 1963-02-07 1964-06-30 Edwin H Schneider Airfoil construction
US3184184A (en) * 1962-06-04 1965-05-18 Harley A Dorman Aircraft having wings with dimpled surfaces
US3391884A (en) * 1965-11-12 1968-07-09 Thomas P. Carhartt Shock wave deflector
EP0127811A2 (en) * 1983-06-04 1984-12-12 Schuberth-Werk GmbH & Co. KG Safety helmet
EP0140936B1 (en) * 1983-04-05 1988-06-08 Anders Edvard Hugo MALMSTRÖM Method and means for preventing wall turbulence
GB2223821A (en) * 1982-01-22 1990-04-18 Secr Defence Apparatus and method for modifying the dynamic interaction between a fluid and a object
WO1991001247A1 (en) * 1989-07-25 1991-02-07 Hans Willi Velke Fluid dynamic surfaces
AU642809B2 (en) * 1991-03-15 1993-10-28 Mattel, Inc. Textured bottom skin for bodyboard and method
WO1994002744A1 (en) * 1991-07-18 1994-02-03 Velke Willi H A device to reduce drag over the surface of mast and boom of a sailcraft
US6345791B1 (en) * 2000-04-13 2002-02-12 Lockheed Martin Corporation Streamwise variable height riblets for reducing skin friction drag of surfaces
ITRM20080554A1 (en) * 2008-10-17 2010-04-18 Romano Ludovico Caputi HULL FOR BOATS OR SHIPS WITH CONCAVE CAVITY SURFACE WITH AIR-CUSHION EFFECT
WO2016083977A1 (en) * 2014-11-24 2016-06-02 Elenco De Qualidade Equipamentos De Controlo Unipessoal, Lda Hull for vessel or board having hydrodynamic elements formed as recesses

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184184A (en) * 1962-06-04 1965-05-18 Harley A Dorman Aircraft having wings with dimpled surfaces
US3139247A (en) * 1963-02-07 1964-06-30 Edwin H Schneider Airfoil construction
US3391884A (en) * 1965-11-12 1968-07-09 Thomas P. Carhartt Shock wave deflector
GB2223821B (en) * 1982-01-22 1990-07-25 Secr Defence Apparatus and method for modifying the dynamic interaction between a fluid and a object
GB2223821A (en) * 1982-01-22 1990-04-18 Secr Defence Apparatus and method for modifying the dynamic interaction between a fluid and a object
EP0140936B1 (en) * 1983-04-05 1988-06-08 Anders Edvard Hugo MALMSTRÖM Method and means for preventing wall turbulence
EP0127811A2 (en) * 1983-06-04 1984-12-12 Schuberth-Werk GmbH & Co. KG Safety helmet
US4564959A (en) * 1983-06-04 1986-01-21 Schuberth-Werk Gmbh & Co. Kg Crash helmet
EP0127811A3 (en) * 1983-06-04 1985-01-23 Schuberth-Werk GmbH & Co. KG Safety helmet
WO1991001247A1 (en) * 1989-07-25 1991-02-07 Hans Willi Velke Fluid dynamic surfaces
AU642809B2 (en) * 1991-03-15 1993-10-28 Mattel, Inc. Textured bottom skin for bodyboard and method
WO1994002744A1 (en) * 1991-07-18 1994-02-03 Velke Willi H A device to reduce drag over the surface of mast and boom of a sailcraft
US6345791B1 (en) * 2000-04-13 2002-02-12 Lockheed Martin Corporation Streamwise variable height riblets for reducing skin friction drag of surfaces
ITRM20080554A1 (en) * 2008-10-17 2010-04-18 Romano Ludovico Caputi HULL FOR BOATS OR SHIPS WITH CONCAVE CAVITY SURFACE WITH AIR-CUSHION EFFECT
WO2016083977A1 (en) * 2014-11-24 2016-06-02 Elenco De Qualidade Equipamentos De Controlo Unipessoal, Lda Hull for vessel or board having hydrodynamic elements formed as recesses

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