Brief communication: A fast vortex-based smearing correction for the actuator line

Alexander Meyer Forsting*, Georg Pirrung, Néstor Ramos García

*Corresponding author for this work

    Research output: Contribution to journalConference articleResearchpeer-review

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    Abstract

    The actuator line is a lifting line representation of aerodynamic surfaces in computational fluid dynamics applications, but with non-singular forces which reduces the self-induced velocities at the line. The vortex-based correction by Meyer Forsting et al. (2019) et al. recovers this missing induction and thus the intended lifting line behaviour of the actuator line. However, its computational cost exceeds that of existing tip corrections and quickly grows with blade discretization. Here we present different methods for reducing its computational cost to the level of existing corrections without jeopardising the stability or accuracy of the original method. The cost is reduced by at least 98 % whereas the power is maximally affected by 0.8 % with respect to the original formulation.
    Original languageEnglish
    JournalWind Energy Science
    Volume5
    Issue number1
    Pages (from-to)349-353
    ISSN2366-7443
    DOIs
    Publication statusPublished - 2020
    EventWind Energy Science Conference 2019: Wind Energy Science Conference 2019 - University College Cork, Cork, Ireland
    Duration: 17 Jun 201920 Jun 2019
    https://www.wesc2019.org/
    https://www.wesc2019.org/theme-3-mini-symposia

    Conference

    ConferenceWind Energy Science Conference 2019
    LocationUniversity College Cork
    Country/TerritoryIreland
    CityCork
    Period17/06/201920/06/2019
    Internet address

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