BR0206740A - Reentrâncias em uma superfìcie - Google Patents

Reentrâncias em uma superfìcie

Info

Publication number
BR0206740A
BR0206740A BR0206740-4A BR0206740A BR0206740A BR 0206740 A BR0206740 A BR 0206740A BR 0206740 A BR0206740 A BR 0206740A BR 0206740 A BR0206740 A BR 0206740A
Authority
BR
Brazil
Prior art keywords
cavity
rupture
edge
cavities
structures
Prior art date
Application number
BR0206740-4A
Other languages
English (en)
Inventor
Hans Oeigarden
Fred Olsen
Original Assignee
Fobox As
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 Fobox As filed Critical Fobox As
Publication of BR0206740A publication Critical patent/BR0206740A/pt

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
    • 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
    • F15D1/002—Influencing flow of fluids by influencing the boundary layer
    • F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
    • F15D1/003—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions
    • F15D1/005—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of dimples
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/26—Boundary layer controls by using rib lets or hydrophobic surfaces
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Pipe Accessories (AREA)
  • Hydraulic Turbines (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Processing Of Meat And Fish (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Prostheses (AREA)
  • Catching Or Destruction (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pens And Brushes (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Dental Preparations (AREA)

Abstract

"REENTRâNCIAS EM UMA SUPERFìCIE". A presente invenção refere-se a estruturas na superfície de corpos para reduzir o arraste em relação a um meio no qual o corpo está localizado ou próximo a. As estruturas compreendem uma pluralidade de cavidades (1, 20, 40, 60). A superfície na qual as cavidades são formadas é fechada. A cavidade apresenta uma borda de ruptura (5, 25, 44 ,66) adjacente à cavidade, com a borda de ruptura localizada a montante da cavidade, de maneira tal a colocar o meio que flui mais próximo à superfície em turbulência ao passar pela borda de ruptura. A cavidade apresenta uma profundidade máxima a partir da superfície de pelo menos aproximadamente 2 mm.
BR0206740-4A 2001-02-02 2002-02-01 Reentrâncias em uma superfìcie BR0206740A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20010579A NO313544B1 (no) 2001-02-02 2001-02-02 Utforminger på overflaten av et legeme
PCT/NO2002/000042 WO2002064422A1 (en) 2001-02-02 2002-02-01 Recesses on a surface

Publications (1)

Publication Number Publication Date
BR0206740A true BR0206740A (pt) 2004-02-10

Family

ID=19912087

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0206740-4A BR0206740A (pt) 2001-02-02 2002-02-01 Reentrâncias em uma superfìcie

Country Status (11)

Country Link
US (1) US6880476B2 (pt)
EP (1) EP1365950A1 (pt)
JP (2) JP2004524207A (pt)
KR (1) KR100858526B1 (pt)
CN (1) CN1325327C (pt)
AU (1) AU2002230309B2 (pt)
BR (1) BR0206740A (pt)
CA (1) CA2434541C (pt)
EA (1) EA004812B1 (pt)
NO (1) NO313544B1 (pt)
WO (1) WO2002064422A1 (pt)

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NO313544B1 (no) * 2001-02-02 2002-10-21 Fred Olsen Utforminger på overflaten av et legeme
DE10301080A1 (de) * 2002-10-22 2004-05-13 Siemens Ag Windkraftanlage
BE1016624A3 (nl) * 2005-06-02 2007-03-06 Rompay Boudewijn Gabriel Van Onderwateroppervlak van vaartuigen en werkwijze voor het vervaardigen ervan.
US8113469B2 (en) 2006-02-21 2012-02-14 University Of Alabama Passive micro-roughness array for drag modification
EP1844860B1 (de) * 2006-04-12 2013-12-18 J. Wagner GmbH Spritzpistole bzw. Vorrichtung mit einer strukturierten Oberfläche zur Führung und/oder Verteilung von Gasen
US7412334B2 (en) * 2006-04-27 2008-08-12 Agilent Technologies, Inc Mass spectrometer and method for enhancing resolution of mass spectra
NL1032739C2 (nl) * 2006-10-24 2008-04-25 Kick Off Ltd Object met oppervlak voor het genereren van microwervels.
WO2008121418A1 (en) * 2007-03-30 2008-10-09 The University Of Alabama A passive drag modification system
EP2031243A1 (en) 2007-08-31 2009-03-04 Lm Glasfiber A/S Means to maintain a flow attached to the exterior of a flow control member
EP2031244A1 (en) 2007-08-31 2009-03-04 Lm Glasfiber A/S Means to maintain flow of a flowing medium attached to the exterior of a flow control member by use of crossing sub-channels
ES2326356B1 (es) * 2008-03-31 2010-07-13 Maria Desamparados Segura Mecho Elemento impulsor aerodinamico.
US8646373B1 (en) 2009-05-04 2014-02-11 Nova Research, Inc. Blast wave effects reduction system
CN101973318A (zh) * 2010-10-09 2011-02-16 侯谦 高速车辆低风阻节能外壳结构
CN103321991A (zh) * 2012-03-19 2013-09-25 周向进 一种降低汽车、火车、飞机空气阻力的方法
US20130330184A1 (en) * 2012-06-08 2013-12-12 General Electric Company Aerodynamic element of turbine engine
WO2014131111A1 (en) * 2013-02-28 2014-09-04 Transmission Cvtcorp Inc. A continuously variable transmission (cvt) having a coaxial input/output arrangement and reduced friction losses
FR3023322B1 (fr) * 2014-07-03 2019-09-06 Safran Aircraft Engines Manche d'entree d'air pour turbomachine
USD886026S1 (en) * 2015-03-10 2020-06-02 Silverstream Technologies B.V. Set of air cavities for hull surface of vessel
US20170234225A1 (en) * 2016-02-13 2017-08-17 General Electric Company Component cooling for a gas turbine engine
TWI722062B (zh) * 2016-11-30 2021-03-21 梅正新 減少船舶航行阻力的結構
US20190351974A1 (en) * 2016-11-30 2019-11-21 Chen-Hsin Mei Structure for reducing the drag of a ship and its application
CN107605874B (zh) * 2017-08-09 2019-11-15 浙江大学 一种抗空蚀微结构表面层
CN108327894B (zh) * 2017-12-29 2021-07-06 西北工业大学 一种仿沙垄气动减阻舌形微结构
WO2019233680A1 (en) * 2018-06-04 2019-12-12 Universiteit Gent Devices and methods for hydrocarbon cracking
USD919544S1 (en) * 2019-05-29 2021-05-18 Silverstream Technologies B.V. Air release unit
US11614106B2 (en) 2019-08-21 2023-03-28 Lockheed Martin Corporation Partially submerged periodic riblets
JP7335766B2 (ja) * 2019-09-30 2023-08-30 株式会社Subaru 整流装置
EP3943387A1 (en) * 2020-07-23 2022-01-26 BAE SYSTEMS plc An arrangement for influencing liquid flow and a method
WO2022018415A1 (en) * 2020-07-23 2022-01-27 Bae Systems Plc An arrangement for influencing liquid flow and a method
EP3943386A1 (en) * 2020-07-23 2022-01-26 BAE SYSTEMS plc An arrangement for influencing liquid flow and a method
EP4185526A1 (en) * 2020-07-23 2023-05-31 BAE SYSTEMS plc An arrangement for influencing liquid flow and a method
PT117851A (pt) * 2022-03-10 2023-09-11 Miguel Cardoso Prata Dos Santos Pedro Superfície promotora de fluxo turbulento

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Also Published As

Publication number Publication date
CA2434541A1 (en) 2002-08-22
CN1496316A (zh) 2004-05-12
JP2004524207A (ja) 2004-08-12
US6880476B2 (en) 2005-04-19
WO2002064422A1 (en) 2002-08-22
EA004812B1 (ru) 2004-08-26
EA200300728A1 (ru) 2004-02-26
KR100858526B1 (ko) 2008-09-12
NO20010579L (no) 2002-08-05
CA2434541C (en) 2008-10-21
JP2008157465A (ja) 2008-07-10
EP1365950A1 (en) 2003-12-03
NO20010579D0 (no) 2001-02-02
US20040083938A1 (en) 2004-05-06
KR20030071877A (ko) 2003-09-06
AU2002230309B2 (en) 2007-10-04
NO313544B1 (no) 2002-10-21
WO2002064422A8 (en) 2003-12-11
CN1325327C (zh) 2007-07-11

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Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements