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Comparison of inflow-turbulence and trailing-edge noise models with measurements of a 200-kW vertical axis wind turbine
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).ORCID-id: 0000-0001-9982-5317
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, Rydberglaboratoriet för tillämpad naturvetenskap (RLAS).
2019 (engelsk)Inngår i: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 1222, artikkel-id 012028Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Models of inflow-turbulence noise and turbulent-boundary-layer trailing-edge noise are compared to earlier measurements of a 200-kW vertical axis wind turbine so that conclusions regarding the origin of the aerodynamic noise can be drawn. The measurement campaigns, which aimed at establishing the noise emission value and locating the aerodynamic noise sources with a microphone array, are here both compared to further modified versions of the trailing-edge and inflow-turbulence models respectively. Unlike the case for horizontal axis wind turbine, inflow-turbulence noise is deemed as the prevailing noise mechanism. Reducing the self-induced turbulence could then be an effective way of lowering the noise levels for vertical axis wind turbines. Also, looking at the directivity of the inflow-turbulence noise model which indicate most noise in the cross-wind directions, a deviation from the standard downwind measurement position for measuring noise emission is suggested for the VAWT case.

sted, utgiver, år, opplag, sider
Bristol: Institute of Physics (IOP), 2019. Vol. 1222, artikkel-id 012028
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URN: urn:nbn:se:hh:diva-39459DOI: 10.1088/1742-6596/1222/1/012028OAI: oai:DiVA.org:hh-39459DiVA, id: diva2:1317487
Konferanse
WindEurope Conference and Exhibition 2019, Bilbao, Spain, 2–4 April, 2019
Tilgjengelig fra: 2019-05-23 Laget: 2019-05-23 Sist oppdatert: 2019-06-07bibliografisk kontrollert

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