CFD code comparison for 2D airfoil flows

Niels N. Sørensen; B. Méndez; A. Muñoz; G. Sieros; E. Jost; T. Lutz; G. Papadakis; S. Voutsinas; G. N. Barakos; S. Colonia; D. Baldacchino; C. Baptista; C. Ferreira

doi:10.1088/1742-6596/753/8/082019

CFD code comparison for 2D airfoil flows

Niels N. Sørensen, B. Méndez, A. Muñoz, G. Sieros, E. Jost, T. Lutz, G. Papadakis, S. Voutsinas, G. N. Barakos, S. Colonia, D. Baldacchino, C. Baptista, C. Ferreira

Wind Energy

Research output: Contribution to journal › Conference article › Scientific › peer-review

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Abstract

The current paper presents the effort, in the EU AVATAR project, to establish the necessary requirements to obtain consistent lift over drag ratios among seven CFD codes. The flow around a 2D airfoil case is studied, for both transitional and fully turbulent conditions at Reynolds numbers of 3 × 10⁶ and 15 × 10⁶. The necessary grid resolution, domain size, and iterative convergence criteria to have consistent results are discussed, and suggestions are given for best practice. For the fully turbulent results four out of seven codes provide consistent results. For the laminar-turbulent transitional results only three out of seven provided results, and the agreement is generally lower than for the fully turbulent case.

Original language	English
Article number	082019
Journal	Journal of Physics: Conference Series
Volume	753
Issue number	8
DOIs	https://doi.org/10.1088/1742-6596/753/8/082019
Publication status	Published - 3 Oct 2016
Event	TORQUE 2016: 6th International Conference "The Science of Making Torque from Wind" - Technische Universität München (TUM), Campus Garching, Munich, Germany Duration: 5 Oct 2016 → 7 Oct 2016 https://www.events.tum.de/?sub=29

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abstract = "The current paper presents the effort, in the EU AVATAR project, to establish the necessary requirements to obtain consistent lift over drag ratios among seven CFD codes. The flow around a 2D airfoil case is studied, for both transitional and fully turbulent conditions at Reynolds numbers of 3 × 106 and 15 × 106. The necessary grid resolution, domain size, and iterative convergence criteria to have consistent results are discussed, and suggestions are given for best practice. For the fully turbulent results four out of seven codes provide consistent results. For the laminar-turbulent transitional results only three out of seven provided results, and the agreement is generally lower than for the fully turbulent case.",

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AU - Sørensen, Niels N.

AU - Méndez, B.

AU - Muñoz, A.

AU - Sieros, G.

AU - Jost, E.

AU - Lutz, T.

AU - Papadakis, G.

AU - Voutsinas, S.

AU - Barakos, G. N.

AU - Colonia, S.

AU - Baldacchino, D.

AU - Baptista, C.

AU - Ferreira, C.

PY - 2016/10/3

Y1 - 2016/10/3

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AB - The current paper presents the effort, in the EU AVATAR project, to establish the necessary requirements to obtain consistent lift over drag ratios among seven CFD codes. The flow around a 2D airfoil case is studied, for both transitional and fully turbulent conditions at Reynolds numbers of 3 × 106 and 15 × 106. The necessary grid resolution, domain size, and iterative convergence criteria to have consistent results are discussed, and suggestions are given for best practice. For the fully turbulent results four out of seven codes provide consistent results. For the laminar-turbulent transitional results only three out of seven provided results, and the agreement is generally lower than for the fully turbulent case.

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CFD code comparison for 2D airfoil flows

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