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On the Application of the Bay Model for Vortex Generator Flows

Marinos Manolesos, Giorgos Papadakis, Spyros G. Voutsinas

ASME Proceedings: Wind Energy, Start page: V009T48A002

Swansea University Author: Marinos Manolesos

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DOI (Published version): 10.1115/GT2018-75217

Abstract

Today, Vortex Generators (VGs) are becoming an integral part of a Wind Turbine blade design. However, the challenges that are involved in the computation of the flow around VGs are yet to be dealt with in a satisfactory manner. A large number of VG models for flow solvers have been proposed and amon...

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Published in: ASME Proceedings: Wind Energy
ISBN: 978-0-7918-5118-0
Published: Oslo, Norway ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition 2018
URI: https://cronfa.swan.ac.uk/Record/cronfa44807
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spelling 2019-09-06T17:39:01.3866398 v2 44807 2018-10-09 On the Application of the Bay Model for Vortex Generator Flows 44a3e0d351ccd7a8365d5fc7c50c8778 Marinos Manolesos Marinos Manolesos true false 2018-10-09 FGSEN Today, Vortex Generators (VGs) are becoming an integral part of a Wind Turbine blade design. However, the challenges that are involved in the computation of the flow around VGs are yet to be dealt with in a satisfactory manner. A large number of VG models for flow solvers have been proposed and among them, the BAY model is one of the most popular for its ease of use and relatively low requirements for user input.In the present paper, a thorough investigation on the performance and application of the BAY model for aerodynamic Vortex Generator flows is presented. A Fully Resolved Reynolds Averaged Navier Stokes simulation is validated against experiments and then used as the benchmark for the BAY model simulations. The Benchmark case is the flow past a wind turbine airfoil at Reynolds number 0.87e6. When the grid related errors are excluded, it is found that in the model simulations, the generated vortices are weaker than in the fully resolved computation. The latter finding is linked to an inherent deficiency of the model, which is explained in detail. As the vortex generation mechanism is different between the fully resolved and the BAY model simulation, so is the vortex evolution and interaction, even on the same numerical mesh. With regards to grid dependence, the integral BAY force depends on both grid density and grid architecture. Conference Paper/Proceeding/Abstract ASME Proceedings: Wind Energy V009T48A002 ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition Oslo, Norway 978-0-7918-5118-0 Flow (Dynamics), Vortices, Generators 31 12 2018 2018-12-31 10.1115/GT2018-75217 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2019-09-06T17:39:01.3866398 2018-10-09T09:02:43.2724832 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Marinos Manolesos 1 Giorgos Papadakis 2 Spyros G. Voutsinas 3
title On the Application of the Bay Model for Vortex Generator Flows
spellingShingle On the Application of the Bay Model for Vortex Generator Flows
Marinos Manolesos
title_short On the Application of the Bay Model for Vortex Generator Flows
title_full On the Application of the Bay Model for Vortex Generator Flows
title_fullStr On the Application of the Bay Model for Vortex Generator Flows
title_full_unstemmed On the Application of the Bay Model for Vortex Generator Flows
title_sort On the Application of the Bay Model for Vortex Generator Flows
author_id_str_mv 44a3e0d351ccd7a8365d5fc7c50c8778
author_id_fullname_str_mv 44a3e0d351ccd7a8365d5fc7c50c8778_***_Marinos Manolesos
author Marinos Manolesos
author2 Marinos Manolesos
Giorgos Papadakis
Spyros G. Voutsinas
format Conference Paper/Proceeding/Abstract
container_title ASME Proceedings: Wind Energy
container_start_page V009T48A002
publishDate 2018
institution Swansea University
isbn 978-0-7918-5118-0
doi_str_mv 10.1115/GT2018-75217
publisher ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description Today, Vortex Generators (VGs) are becoming an integral part of a Wind Turbine blade design. However, the challenges that are involved in the computation of the flow around VGs are yet to be dealt with in a satisfactory manner. A large number of VG models for flow solvers have been proposed and among them, the BAY model is one of the most popular for its ease of use and relatively low requirements for user input.In the present paper, a thorough investigation on the performance and application of the BAY model for aerodynamic Vortex Generator flows is presented. A Fully Resolved Reynolds Averaged Navier Stokes simulation is validated against experiments and then used as the benchmark for the BAY model simulations. The Benchmark case is the flow past a wind turbine airfoil at Reynolds number 0.87e6. When the grid related errors are excluded, it is found that in the model simulations, the generated vortices are weaker than in the fully resolved computation. The latter finding is linked to an inherent deficiency of the model, which is explained in detail. As the vortex generation mechanism is different between the fully resolved and the BAY model simulation, so is the vortex evolution and interaction, even on the same numerical mesh. With regards to grid dependence, the integral BAY force depends on both grid density and grid architecture.
published_date 2018-12-31T03:56:14Z
_version_ 1763752829826105344
score 11.01353

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