Inverse Design of Single- and Multi-Rotor Horizontal Axis Wind Turbine Blades Using Computational Fluid Dynamics

dc.contributor.author Moghadassian, Behnam
dc.contributor.author Sharma, Anupam
dc.contributor.author Sharma, Anupam
dc.contributor.department Aerospace Engineering
dc.date 2020-12-22T04:26:06.000
dc.date.accessioned 2021-02-24T18:29:25Z
dc.date.available 2021-02-24T18:29:25Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2018
dc.date.issued 2018-04-01
dc.description.abstract <p>A method for inverse design of horizontal axis wind turbines (HAWTs) is presented in this paper. The direct solver for aerodynamic analysis solves the Reynolds-averaged Navier–Stokes (RANS) equations, where the effect of the turbine rotor is modeled as momentum sources using the actuator disk model (ADM); this approach is referred to as RANS/ADM. The inverse problem is posed as follows: for a given selection of airfoils, the objective is to find the blade geometry (described as blade twist and chord distributions) which realizes the desired turbine aerodynamic performance at the design point; the desired performance is prescribed as angle of attack (<em>α</em>) and axial induction factor (a) distributions along the blade. An iterative approach is used. An initial estimate of blade geometry is used with the direct solver (RANS/ADM) to obtain <em>α</em> and a. The differences between the calculated and desired values of <em>α</em> and a are computed and a new estimate for the blade geometry (chord and twist) is obtained via nonlinear least squares regression using the trust-region-reflective (TRF) method. This procedure is continued until the difference between the calculated and the desired values is within acceptable tolerance. The method is demonstrated for conventional, single-rotor HAWTs and then extended to multirotor, specifically dual-rotor wind turbines (DRWT). The TRF method is also compared with the multidimensional Newton iteration method and found to provide better convergence when constraints are imposed in blade design, although faster convergence is obtained with the Newton method for unconstrained optimization.</p>
dc.description.comments <p>This is a manuscript of an article published as Moghadassian, Behnam, and Anupam Sharma. "Inverse design of single-and multi-rotor horizontal axis wind turbine blades using computational fluid dynamics." <em>Journal of Solar Energy Engineering</em> 140, no. 2 (2018): 021003. DOI: <a href="https://doi.org/10.1115/1.4038811" target="_blank">10.1115/1.4038811</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/aere_pubs/176/
dc.identifier.articleid 1177
dc.identifier.contextkey 20747959
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_pubs/176
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/93029
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/aere_pubs/176/0-SharmaAnupam_PermGrant_InverseDesign_ASME.pdf|||Fri Jan 14 21:26:10 UTC 2022
dc.source.bitstream archive/lib.dr.iastate.edu/aere_pubs/176/2018_SharmaAnupam_InverseDesignSingle.pdf|||Fri Jan 14 21:26:12 UTC 2022
dc.source.uri 10.1115/1.4038811
dc.subject.disciplines Aerodynamics and Fluid Mechanics
dc.subject.disciplines Aerospace Engineering
dc.subject.disciplines Computational Engineering
dc.subject.keywords Wind
dc.subject.keywords Wind turbine
dc.title Inverse Design of Single- and Multi-Rotor Horizontal Axis Wind Turbine Blades Using Computational Fluid Dynamics
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 9797e35d-08ee-41c7-8982-c83e6db2ed8e
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
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