EP1382379A3 - Vortex generator with controlled downstream flowpattern - Google Patents

Vortex generator with controlled downstream flowpattern Download PDF

Info

Publication number
EP1382379A3
EP1382379A3 EP03405505A EP03405505A EP1382379A3 EP 1382379 A3 EP1382379 A3 EP 1382379A3 EP 03405505 A EP03405505 A EP 03405505A EP 03405505 A EP03405505 A EP 03405505A EP 1382379 A3 EP1382379 A3 EP 1382379A3
Authority
EP
European Patent Office
Prior art keywords
flow
vortex generator
vortex
wake
flowpattern
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.)
Granted
Application number
EP03405505A
Other languages
German (de)
French (fr)
Other versions
EP1382379B1 (en
EP1382379A2 (en
Inventor
Peter Dr. Flohr
Ephraim Prof. Dr. Gutmark
Bettina Paikert
Christian Oliver Prof. Dr. Paschereit
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 Technology GmbH
Original Assignee
Alstom Technology AG
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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1382379A2 publication Critical patent/EP1382379A2/en
Publication of EP1382379A3 publication Critical patent/EP1382379A3/en
Application granted granted Critical
Publication of EP1382379B1 publication Critical patent/EP1382379B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
    • B01F25/43171—Profiled blades, wings, wedges, i.e. plate-like element having one side or part thicker than the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F25/431971—Mounted on the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04—Air inlet arrangements
    • F23R3/10—Air inlet arrangements for primary air
    • F23R3/12—Air inlet arrangements for primary air inducing a vortex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2215/00—Auxiliary or complementary information in relation with mixing
    • B01F2215/04—Technical information in relation with mixing
    • B01F2215/0413—Numerical information
    • B01F2215/0436—Operational information
    • B01F2215/044—Numerical composition values of components or mixtures, e.g. percentage of components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/20—Heat transfer, e.g. cooling
    • F05B2260/221—Improvement of heat transfer
    • F05B2260/222—Improvement of heat transfer by creating turbulence

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Gas Burners (AREA)

Abstract

Die Erfindung betrifft einen Wirbelgenerator in einem von einem fluiden Medium beaufschlagten Strömungskanal sowie ein Verfahren zur Kontrolle der Nachlaufströmung eines solchen Wirbelgenerators.The invention relates to a vortex generator in one of one fluid medium acted upon flow channel and a Process for controlling the wake flow of such Vortex generator.

Die Aufgabe, die Bildung einer Rückströmzone im Kern des Nachlaufwirbels (11) auch unter wechselnden Strömungsbedingungen sicher zu vermeiden, wird erfindungsgemäss dadurch gelöst, dass in die Kernströmung des Nachlaufwirbels (11) gezielt ein Axialimpuls eingebracht wird. Nach einer bevorzugten Ausführungsform der Erfindung wird zu diesem Zweck über Austrittsöffnungen (12) am Wirbelgenerator (2) eine Sekundärströmung wenigstens annähernd in Richtung der Hauptströmung in die Kernströmung des Nachlaufwirbels (11) eingebracht.

Figure 00000001
The object of reliably avoiding the formation of a backflow zone in the core of the wake vortex (11) even under changing flow conditions is achieved according to the invention in that a targeted axial pulse is introduced into the core flow of the wake vortex (11). According to a preferred embodiment of the invention, a secondary flow is introduced at least approximately in the direction of the main flow into the core flow of the wake vortex (11) via outlet openings (12) on the vortex generator (2).
Figure 00000001
EP03405505A 2002-07-20 2003-07-07 Process for controlling the downstream flowpattern of a vortex generator Expired - Fee Related EP1382379B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10233111 2002-07-20
DE10233111 2002-07-20

Publications (3)

Publication Number Publication Date
EP1382379A2 EP1382379A2 (en) 2004-01-21
EP1382379A3 true EP1382379A3 (en) 2004-05-12
EP1382379B1 EP1382379B1 (en) 2007-05-30

Family

ID=29762099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405505A Expired - Fee Related EP1382379B1 (en) 2002-07-20 2003-07-07 Process for controlling the downstream flowpattern of a vortex generator

Country Status (4)

Country Link
US (1) US20040037162A1 (en)
EP (1) EP1382379B1 (en)
JP (1) JP2004069061A (en)
DE (2) DE10330023A1 (en)

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US7350963B2 (en) * 2005-02-04 2008-04-01 Hamilton Beach Brands, Inc. Blender jar
US7797944B2 (en) 2006-10-20 2010-09-21 United Technologies Corporation Gas turbine engine having slim-line nacelle
US7870721B2 (en) * 2006-11-10 2011-01-18 United Technologies Corporation Gas turbine engine providing simulated boundary layer thickness increase
US8727267B2 (en) * 2007-05-18 2014-05-20 United Technologies Corporation Variable contraction ratio nacelle assembly for a gas turbine engine
US8402739B2 (en) * 2007-06-28 2013-03-26 United Technologies Corporation Variable shape inlet section for a nacelle assembly of a gas turbine engine
US9228534B2 (en) 2007-07-02 2016-01-05 United Technologies Corporation Variable contour nacelle assembly for a gas turbine engine
US7900871B2 (en) * 2007-07-20 2011-03-08 Textron Innovations, Inc. Wing leading edge having vortex generators
US9004399B2 (en) 2007-11-13 2015-04-14 United Technologies Corporation Nacelle flow assembly
US8186942B2 (en) * 2007-12-14 2012-05-29 United Technologies Corporation Nacelle assembly with turbulators
US8192147B2 (en) 2007-12-14 2012-06-05 United Technologies Corporation Nacelle assembly having inlet bleed
EP2230455B1 (en) * 2009-03-16 2012-04-18 Alstom Technology Ltd Burner for a gas turbine and method for locally cooling a hot gases flow passing through a burner
US8528601B2 (en) * 2009-03-30 2013-09-10 The Regents Of The University Of Michigan Passive boundary layer control elements
US8870124B2 (en) * 2009-07-10 2014-10-28 Peter Ireland Application of elastomeric vortex generators
KR101005661B1 (en) * 2009-09-08 2011-01-05 김낙회 Propulsion device using fluid flow
US8434723B2 (en) * 2010-06-01 2013-05-07 Applied University Research, Inc. Low drag asymmetric tetrahedral vortex generators
US8881500B2 (en) * 2010-08-31 2014-11-11 General Electric Company Duplex tab obstacles for enhancement of deflagration-to-detonation transition
US8746053B2 (en) 2010-12-16 2014-06-10 Inventus Holdings, Llc Method for determining optimum vortex generator placement for maximum efficiency on a retrofitted wind turbine generator of unknown aerodynamic design
RU2561956C2 (en) 2012-07-09 2015-09-10 Альстом Текнолоджи Лтд Gas-turbine combustion system
KR20140018036A (en) * 2012-08-03 2014-02-12 김낙회 Propulsion device using fluid flow
US10988923B2 (en) 2012-11-30 2021-04-27 Rensselaer Polytechnic Institute Methods and systems of modifying air flow at building structures
RU2596077C2 (en) * 2014-12-15 2016-08-27 Федеральное государственное бюджетное учреждение науки Институт теоретической и прикладной механики им. С.А. Христиановича Сибирского отделения Российской академии наук (ИТПМ СО РАН) Slot-type injector-vortex generator and operation method thereof
EP3081862B1 (en) 2015-04-13 2020-08-19 Ansaldo Energia Switzerland AG Vortex generating arrangement for a pre-mixing burner of a gas turbine and gas turbine with such vortex generating arrangement
JP6377569B2 (en) * 2015-04-28 2018-08-22 住友金属鉱山株式会社 Fluid blowing apparatus and chemical reaction apparatus using the same
US9982915B2 (en) 2016-02-23 2018-05-29 Gilles Savard Air heating unit using solar energy
CN108121864B (en) * 2017-12-15 2021-05-25 北京理工大学 End wall transverse secondary flow control method based on vortex generator
CN108536907B (en) * 2018-03-01 2021-11-30 华北电力大学 Wind turbine far-field wake flow analytic modeling method based on simplified momentum theorem
CN108629461B (en) * 2018-05-14 2021-11-12 华北电力大学 Near-field wake flow prediction model based on simplified momentum theorem
CN115362333B (en) * 2020-03-31 2023-08-25 西门子能源全球有限两合公司 Combustor component of a combustor and combustor of a gas turbine having such a combustor component
JP7063973B1 (en) * 2020-11-27 2022-05-09 三菱重工業株式会社 Manufacturing method of vortex generator for wind turbine blades, wind turbine blades and wind power generators, and wind turbine blades

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Also Published As

Publication number Publication date
EP1382379B1 (en) 2007-05-30
DE50307355D1 (en) 2007-07-12
DE10330023A1 (en) 2004-02-05
EP1382379A2 (en) 2004-01-21
US20040037162A1 (en) 2004-02-26
JP2004069061A (en) 2004-03-04

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