NOISE REDUCTION MEANS FOR A ROTOR BLADE OF A WIND TURBINE
The invention relates to a rotor blade (20) of a wind turbine (10). The rotor blade (20) comprises a pressure side (251), a suction side (252), a leading edge section (24), and a trailing edge section (23) with a trailing edge (231). The rotor blade (20) comprises a noise reduction means (30) with a...
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| creator | SINGH, MANJINDER J ASHEIM, MICHAEL J LORENZONI, VALERIO OLSEN, ANDERS SMAERUP OERLEMANS, STEFAN |
| description | The invention relates to a rotor blade (20) of a wind turbine (10). The rotor blade (20) comprises a pressure side (251), a suction side (252), a leading edge section (24), and a trailing edge section (23) with a trailing edge (231). The rotor blade (20) comprises a noise reduction means (30) with at least one aerodynamic device (31) for manipulating an airflow (32) flowing from the leading edge section (24) to the trailing edge section (23). The airflow (32) builds up a boundary layer with vortices adjacent to the surface of the rotor blade (20). The aerodynamic device (31) is located at the trailing edge section (23) of the rotor blade (20), and is arranged such that it is able to split up a vortex of the boundary layer into several smaller sub-vortices. Thus noise that is generated by interaction of the airflow (32) with the rotor blade (20) may be reduced. |
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The rotor blade (20) comprises a pressure side (251), a suction side (252), a leading edge section (24), and a trailing edge section (23) with a trailing edge (231). The rotor blade (20) comprises a noise reduction means (30) with at least one aerodynamic device (31) for manipulating an airflow (32) flowing from the leading edge section (24) to the trailing edge section (23). The airflow (32) builds up a boundary layer with vortices adjacent to the surface of the rotor blade (20). The aerodynamic device (31) is located at the trailing edge section (23) of the rotor blade (20), and is arranged such that it is able to split up a vortex of the boundary layer into several smaller sub-vortices. Thus noise that is generated by interaction of the airflow (32) with the rotor blade (20) may be reduced.</description><language>eng ; fre</language><subject>BLASTING ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; HEATING ; INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THANNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS,TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTIONPRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY ; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 ; LIGHTING ; MACHINES OR ENGINES FOR LIQUIDS ; MECHANICAL ENGINEERING ; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR ; PRODUCING MECHANICAL POWER ; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; WEAPONS ; WIND MOTORS ; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151112&DB=EPODOC&CC=CA&NR=2948068A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151112&DB=EPODOC&CC=CA&NR=2948068A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SINGH, MANJINDER J</creatorcontrib><creatorcontrib>ASHEIM, MICHAEL J</creatorcontrib><creatorcontrib>LORENZONI, VALERIO</creatorcontrib><creatorcontrib>OLSEN, ANDERS SMAERUP</creatorcontrib><creatorcontrib>OERLEMANS, STEFAN</creatorcontrib><title>NOISE REDUCTION MEANS FOR A ROTOR BLADE OF A WIND TURBINE</title><description>The invention relates to a rotor blade (20) of a wind turbine (10). The rotor blade (20) comprises a pressure side (251), a suction side (252), a leading edge section (24), and a trailing edge section (23) with a trailing edge (231). The rotor blade (20) comprises a noise reduction means (30) with at least one aerodynamic device (31) for manipulating an airflow (32) flowing from the leading edge section (24) to the trailing edge section (23). The airflow (32) builds up a boundary layer with vortices adjacent to the surface of the rotor blade (20). The aerodynamic device (31) is located at the trailing edge section (23) of the rotor blade (20), and is arranged such that it is able to split up a vortex of the boundary layer into several smaller sub-vortices. 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The rotor blade (20) comprises a pressure side (251), a suction side (252), a leading edge section (24), and a trailing edge section (23) with a trailing edge (231). The rotor blade (20) comprises a noise reduction means (30) with at least one aerodynamic device (31) for manipulating an airflow (32) flowing from the leading edge section (24) to the trailing edge section (23). The airflow (32) builds up a boundary layer with vortices adjacent to the surface of the rotor blade (20). The aerodynamic device (31) is located at the trailing edge section (23) of the rotor blade (20), and is arranged such that it is able to split up a vortex of the boundary layer into several smaller sub-vortices. Thus noise that is generated by interaction of the airflow (32) with the rotor blade (20) may be reduced.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre |
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| subjects | BLASTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THANNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS,TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTIONPRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS |
| title | NOISE REDUCTION MEANS FOR A ROTOR BLADE OF A WIND TURBINE |
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