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Source Term Modelling of Vane-Type Vortex Generators under Adverse Pressure Gradient in OpenFOAM

Author

Listed:
  • Iñigo Errasti

    (Nuclear Engineering and Fluid Mechanics Department, University of the Basque Country, E-01009 Vitoria-Gasteiz, Spain)

  • Unai Fernández-Gamiz

    (Nuclear Engineering and Fluid Mechanics Department, University of the Basque Country, E-01009 Vitoria-Gasteiz, Spain)

  • Pablo Martínez-Filgueira

    (Nuclear Engineering and Fluid Mechanics Department, University of the Basque Country, E-01009 Vitoria-Gasteiz, Spain)

  • Jesús María Blanco

    (Nuclear Engineering and Fluid Mechanics Department, University of the Basque Country, E-01009 Vitoria-Gasteiz, Spain)

Abstract

An analysis of the generation of vortices and their effects by vane-type vortex generators (VGs) positioned on a three-dimensional flat plate with a backward-facing ramp and adverse gradient pressure is carried out. The effects of a conventional vortex generator and a sub-boundary layer vortex generator are implemented by using a source term in the corresponding Navier-Stokes equations of momentum and energy according to the so-called jBAY Source Term Model. The influence of the vortex generator onto the computational domain flow is modelled through this source term in the Computational Fluid Dynamics (CFD) simulations using the open-source code OpenFOAM. The Source Term Model seems to simulate relatively well the streamwise pressure coefficient distributions all along the flat plate floor as well as certain parameters studied for vortex characterization such as vortex path, decay and size for the two vane-type vortex generators of different heights studied. Consequently, the implementation of the Source Term Model represents an advantage over a fully Mesh-Resolved Vortex Generator Model for certain applications as a result of a meaningful decrease in the cell number of the computational domain which implies saving computational time and resources.

Suggested Citation

  • Iñigo Errasti & Unai Fernández-Gamiz & Pablo Martínez-Filgueira & Jesús María Blanco, 2019. "Source Term Modelling of Vane-Type Vortex Generators under Adverse Pressure Gradient in OpenFOAM," Energies, MDPI, vol. 12(4), pages 1-21, February.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:4:p:605-:d:205860
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    References listed on IDEAS

    as
    1. Gao, Linyue & Zhang, Hui & Liu, Yongqian & Han, Shuang, 2015. "Effects of vortex generators on a blunt trailing-edge airfoil for wind turbines," Renewable Energy, Elsevier, vol. 76(C), pages 303-311.
    2. Ruben Gutierrez-Amo & Unai Fernandez-Gamiz & Iñigo Errasti & Ekaitz Zulueta, 2018. "Computational Modelling of Three Different Sub-Boundary Layer Vortex Generators on a Flat Plate," Energies, MDPI, vol. 11(11), pages 1-21, November.
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    Cited by:

    1. Wenhui Huang & Lei Chen & Weijia Wang & Lijun Yang & Xiaoze Du, 2020. "Cooling Performance Optimization of Direct Dry Cooling System Based on Partition Adjustment of Axial Flow Fans," Energies, MDPI, vol. 13(12), pages 1-22, June.
    2. Sergio Chillon & Antxon Uriarte-Uriarte & Iñigo Aramendia & Pablo Martínez-Filgueira & Unai Fernandez-Gamiz & Iosu Ibarra-Udaeta, 2020. "jBAY Modeling of Vane-Type Vortex Generators and Study on Airfoil Aerodynamic Performance," Energies, MDPI, vol. 13(10), pages 1-15, May.

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