CFD code comparison for 2D airfoil flows

Journal article (2016)

Authors

Niels N. Sørensen Technical University of Denmark (DTU)
D. Baldacchino Wind Energy - Aerospace Engineering
C.F. Baptista Wind Energy - Aerospace Engineering
Carlos Ferreira Wind Energy - Aerospace Engineering
A. Muñoz CENER
E. Jost University of Stuttgart
T. Lutz University of Stuttgart
G. Papadakis National Technical University of Athens
S. Voutsinas National Technical University of Athens
G. N. Barakos University of Glasgow
S. Colonia University of Glasgow
Research Group
Wind Energy (Aerospace Engineering) (TU Delft)
Copyright: © 2016 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.F. Baptista, Carlos Ferreira
DOI: https://doi.org/10.1088/1742-6596/753/8/082019
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Published Date

03-10-2016

Language

English

Faculty

Aerospace Engineering

Department

Flow Physics and Technology

Research Group

Wind Energy

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.