DK2275672T3 - Grænselagsribber til vindmøllevinge - Google Patents

Grænselagsribber til vindmøllevinge Download PDF

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Publication number
DK2275672T3
DK2275672T3 DK10163335.2T DK10163335T DK2275672T3 DK 2275672 T3 DK2275672 T3 DK 2275672T3 DK 10163335 T DK10163335 T DK 10163335T DK 2275672 T3 DK2275672 T3 DK 2275672T3
Authority
DK
Denmark
Prior art keywords
boundary layer
blade
wind turbine
ribs
local
Prior art date
Application number
DK10163335.2T
Other languages
English (en)
Inventor
Eswararao Vsj Anjuri
Stefan Herr
Tito K Vemuri
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Application granted granted Critical
Publication of DK2275672T3 publication Critical patent/DK2275672T3/da

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F03D1/0641—Rotors characterised by their aerodynamic shape of the blades of the section profile of the blades, i.e. aerofoil profile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/306—Surface measures
    • F05B2240/3062—Vortex generators
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (6)

1. Vindmøllevinge (20) omfattende en flerhed af grænselagsribber (22), tilpasset i det væsentlige parallelt med en strømningsretning over vingen, til at reducere grænselagsadskillelse fra vingen; idet hver af grænselagsribberne (22) har en højde på mellem 25% til 100% af en lokal grænselagstykkelse på den tilsvarende grænselagsribbe; idet oversiden på hver af grænselagsribberne (22) har en krumningsradius på mellem 2 til 15 gange en lokal grænselagstykkelse på den tilsvarende grænselagsribbe; idet hver af grænselagsribberne (22) har en længde på mellem 2 til 40 gange en højde på den tilsvarende grænselagsribbe; og hvor grænselagsribberne (22) er indrettet i en flerhed af par, hver grænselagsribbe i et par er adskilt med en første afstand på mellem 2 til 8 gange en lokal grænselagstykkelse på det tilsvarende par af grænselagsribber; og hvert par af grænselagsribberne er adskilt med en anden afstand på mellem 2 til 8 gange en lokal grænselagstykkelse mellem de tilsvarende par af grænselagsribber, og hvor den lokale grænselagstykkelse er beregnet når vingen (20), eller den tilsvarende vindmølle (4), er betjent uden en grænselagsribbe (22) og ved dens nominelle omdrejninger i minuttet.
2. Vindmøllevinge (20) ifølge krav 1, hvor hver af grænselagsribberne (22) har en højde på mellem 50% til 75% afen lokal grænselagstykkelse ved den tilsvarende grænselagsribbe.
3. Vindmøllevinge (20) ifølge et hvilket som helst af de foregående krav, hvor en overside på hver af grænselagsribberne (22) har en krumningsradius på mellem 2 til 60 gange en højde på den tilsvarende grænselagsribbe.
4. Vindmøllevinge (20) ifølge et hvilket som helst af de foregående krav, hvor en overside på hver af grænselagsribberne (22) har en krumningsradius på mellem 40 og 150 millimeter.
5. Vindmøllevinge (20) ifølge et hvilket som helst af de foregående krav, hvor hver af grænselagsribberne (22) har en længde på mellem 2 til 10 gange en lokal grænselagstykkelse på den tilsvarende grænselagsribbe.
6. Vindmøllevinge (20) ifølge et hvilket som helst af de foregående krav, hvor hver af grænselagsribberne (22) har en tykkelse på mellem 10% og 100% af en højde på den tilsvarende grænselagsribbe.
DK10163335.2T 2009-05-28 2010-05-19 Grænselagsribber til vindmøllevinge DK2275672T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/473,827 US7857597B2 (en) 2009-05-28 2009-05-28 Boundary layer fins for wind turbine blade

Publications (1)

Publication Number Publication Date
DK2275672T3 true DK2275672T3 (da) 2016-12-12

Family

ID=42231283

Family Applications (1)

Application Number Title Priority Date Filing Date
DK10163335.2T DK2275672T3 (da) 2009-05-28 2010-05-19 Grænselagsribber til vindmøllevinge

Country Status (4)

Country Link
US (1) US7857597B2 (da)
EP (1) EP2275672B1 (da)
CN (1) CN101900077B (da)
DK (1) DK2275672T3 (da)

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US20140328688A1 (en) * 2013-05-03 2014-11-06 General Electric Company Rotor blade assembly having vortex generators for wind turbine
US9562513B2 (en) 2013-05-03 2017-02-07 General Electric Company Wind turbine rotor blade assembly with surface features
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US10167845B2 (en) * 2013-11-27 2019-01-01 Rutgers, The State University Of New Jersey Blade flow deflector
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CA2948068A1 (en) 2014-05-06 2015-11-12 Siemens Aktiengesellschaft Noise reduction means for a rotor blade of a wind turbine
CN106460788A (zh) * 2014-06-18 2017-02-22 西门子公司 用于风力涡轮机叶片的降噪器
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GB2556110B (en) * 2016-11-21 2020-04-01 Dyson Technology Ltd Compressor blade surface patterning
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CN109975218A (zh) * 2019-04-19 2019-07-05 太原科技大学 一种通过频率调制抑制光谱测量中干涉噪声的方法
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Also Published As

Publication number Publication date
US7857597B2 (en) 2010-12-28
EP2275672A3 (en) 2015-08-12
EP2275672B1 (en) 2016-10-19
CN101900077B (zh) 2014-06-25
US20100143144A1 (en) 2010-06-10
CN101900077A (zh) 2010-12-01
EP2275672A2 (en) 2011-01-19

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