YU115288A - Talasasta ploča za smanjenje baznog otpora - Google Patents

Talasasta ploča za smanjenje baznog otpora

Info

Publication number
YU115288A
YU115288A YU115288A YU115288A YU115288A YU 115288 A YU115288 A YU 115288A YU 115288 A YU115288 A YU 115288A YU 115288 A YU115288 A YU 115288A YU 115288 A YU115288 A YU 115288A
Authority
YU
Yugoslavia
Prior art keywords
smooth surface
plate
basic resistance
flow
blunt end
Prior art date
Application number
YU115288A
Other languages
English (en)
Inventor
R.W. Paterson
M.J. Werle
W.M. Presz
Original Assignee
United Technologies Corporation
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 United Technologies Corporation filed Critical United Technologies Corporation
Publication of YU115288A publication Critical patent/YU115288A/sh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/22—Projectiles of cannelured type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D35/00—Vehicle bodies characterised by streamlining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Body Structure For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Prostheses (AREA)

Abstract

TALASASTA PLOČA ZA SMANJENJE BAZNOG OTPORA. Pronalazak se odnosi na talasastu ploču za poboljšanje aerodinamičkih osobina vozila. Telo (200) koje se može kretati u smeru strujanja kroz neki fluid ima glatku površinu koja se pruža u pravcu strujanja, označenu sa (202) koja se završava kod tupe krajnje površine (206). Poprečno na glatku površinu (202) i ispred tupe krajnje površine (206) postavljena je tanka ploča (210), koja se pruža u pravcu strujanja, a postavljena je na malom rastojanju od glatke površine (202). Najmanje je deo kod zadnjeg kraja ploče (210) talasast tako da je njen zadnji kraj (216) izveden u vidu talasa. Talasi su projektovani da obrazuju parove vrtloga (230, 234; 228, 238), koji se obrću u susednim smerovima, a koji odlažu odvajanje graničnog sloja od glatke površine (202) i čine da fluid struji u prostor neposredno iza tupe krajnje površine (206), čime se smanjuje bazni otpor tela (200). Naprava stvara veoma mali sopstveni otpor.
YU115288A 1987-11-05 1988-06-14 Talasasta ploča za smanjenje baznog otpora YU115288A (sh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/117,770 US4776535A (en) 1986-12-29 1987-11-05 Convoluted plate to reduce base drag

Publications (1)

Publication Number Publication Date
YU115288A true YU115288A (sh) 1992-09-07

Family

ID=22374707

Family Applications (1)

Application Number Title Priority Date Filing Date
YU115288A YU115288A (sh) 1987-11-05 1988-06-14 Talasasta ploča za smanjenje baznog otpora

Country Status (6)

Country Link
US (1) US4776535A (sh)
EP (1) EP0315563B1 (sh)
JP (1) JPH01122784A (sh)
KR (1) KR950014419B1 (sh)
DE (2) DE315563T1 (sh)
YU (1) YU115288A (sh)

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US5108145A (en) * 1991-04-18 1992-04-28 Harris B Waylon Apparatus and method for motor vehicle air drag reduction using rear surface structure
US5289997A (en) * 1991-04-18 1994-03-01 Harris B Waylon Apparatus and method for reducing drag on bodies moving through fluid
US5230656A (en) * 1992-08-05 1993-07-27 Carrier Corporation Mixer ejector flow distributor
ES2064261B1 (es) * 1993-02-25 1998-07-16 Doria Iriarte Jose Javier Fuselaje mejorado a fin de lograr efectos de estabilizacion de torbellinos.
US5282560A (en) * 1993-04-26 1994-02-01 Ford Motor Company Luggage rack with wind noise reducer
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US5634613A (en) * 1994-07-18 1997-06-03 Mccarthy; Peter T. Tip vortex generation technology for creating a lift enhancing and drag reducing upwash effect
DE10018389C2 (de) 2000-04-13 2003-12-18 Airbus Gmbh Vorrichtung sowie Verfahren zur Reduzierung von Nachlaufwirbeln hinter Flugzeugen im Landeanflug
DE10020177A1 (de) * 2000-04-25 2001-11-08 Daimler Chrysler Ag Einrichtung zur Lärmminderung an Tragflügeln von Flugzeugen
DE10047826A1 (de) * 2000-09-27 2002-04-18 Elster Produktion Gmbh Verfahren und Vorrichtung zum Vermindern von Resonanzerscheinungen
GB0103091D0 (en) * 2001-02-08 2001-03-28 Shaw Andrew Reduction of aerodynamic drag in surface vehicles
WO2004012987A2 (en) * 2002-04-26 2004-02-12 Board Of Regents Methods for reducing the viscous drag on a surface and drag reducing device
US7296411B2 (en) * 2002-06-21 2007-11-20 Darko Segota Method and system for regulating internal fluid flow within an enclosed or semi-enclosed environment
EP1515887A1 (en) * 2002-06-26 2005-03-23 McCarthy, Peter T. High efficiency tip vortex reversal and induced drag reduction
WO2004009185A1 (en) 2002-07-19 2004-01-29 Mccarthy Peter T High deflection hydrofoils and swim fins
US6634700B1 (en) * 2002-08-02 2003-10-21 5 Star Product Design & Development Group, Inc. Aerodynamic trailer
US6926345B2 (en) * 2002-09-20 2005-08-09 The Regents Of The University Of California Apparatus and method for reducing drag of a bluff body in ground effect using counter-rotating vortex pairs
CN101378950A (zh) * 2006-01-31 2009-03-04 美铝公司 涡流发生器
GB2436861A (en) * 2006-04-04 2007-10-10 William Samuel Bath Aerofoil
RU2328411C2 (ru) * 2006-07-07 2008-07-10 Институт теоретической и прикладной механики им. С.А. Христиановича СО РАН (ИТПМ СО РАН) Способ управления отрывом потока
DE102006043462A1 (de) * 2006-09-15 2008-03-27 Deutsches Zentrum für Luft- und Raumfahrt e.V. Aerodynamisches Bauteil mit einer gewellten Hinterkante
US20090065645A1 (en) * 2007-02-05 2009-03-12 United Technologies Corporation Articles with reduced fluid dynamic drag
RU2007134266A (ru) * 2007-09-14 2009-03-20 Геннадий Трофимович Крещишин (RU) Хвостовая часть самолета крещишина и способ модернизации с уменьшением полного сопротивления самолета крещишина
DE102008010873A1 (de) * 2008-02-23 2009-08-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Luftleiteinrichtung
US8757701B2 (en) * 2010-01-15 2014-06-24 Aeroserve Technologies, Ltd. Drag reduction device for transport vehicles having randomized irregular shaped edge vortex generating channels
FR2968272B1 (fr) * 2010-12-06 2013-07-12 Eurocopter France Element de structure ameliore d'un giravion pour diminuer la trainee aerodynamique.
US9676427B2 (en) * 2013-02-15 2017-06-13 Dialectic Flow Technologies, Llc Low drag low noise devices using jet flow control
US10081397B2 (en) * 2013-04-05 2018-09-25 Andy BACON Fuel efficiency of road vehicles
US8870275B1 (en) * 2013-10-18 2014-10-28 Peter Schmidt Active and passive boundary layer control for vehicle drag reduction
US9394011B1 (en) * 2015-09-15 2016-07-19 Michael W. Hanagan Reducing wind resistance of a vehicle
NL2017402B1 (en) * 2016-09-01 2018-03-09 Univ Delft Tech Body provided with a superficial area adapted to reduce drag when the body is moving relative to a gaseous or watery medium
US10829228B2 (en) * 2017-01-17 2020-11-10 Itt Manufacturing Enterprises, Llc Fluid straightening connection unit
US9963187B1 (en) * 2017-08-25 2018-05-08 Accell North America, Inc. Aerodynamic bicycle frame
US11305827B2 (en) * 2018-04-13 2022-04-19 Compagnie Generale Des Etablissements Michelin Trailer fairing with leading edge design for trailer corrugations
RU196336U1 (ru) * 2019-03-14 2020-02-26 Юрий Адольфович Занев Опознавательный знак автомобиля
US11614106B2 (en) * 2019-08-21 2023-03-28 Lockheed Martin Corporation Partially submerged periodic riblets
EP3967580B1 (en) * 2020-09-15 2025-05-07 Joseph Stinchcomb Vortex drag disruption apparatus
CN114673563B (zh) * 2022-03-29 2023-03-24 北京航空航天大学 一种航空发动机涡轮组件
CN119499982B (zh) * 2024-11-26 2025-10-31 中国科学院大连化学物理研究所 一种夹层式多通道反应系统及其应用

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Also Published As

Publication number Publication date
KR950014419B1 (ko) 1995-11-27
DE315563T1 (de) 1989-10-05
KR890007978A (ko) 1989-07-06
EP0315563A1 (en) 1989-05-10
JPH01122784A (ja) 1989-05-16
US4776535A (en) 1988-10-11
DE3870155D1 (de) 1992-05-21
EP0315563B1 (en) 1992-04-15

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