A review of guidelines and best practices for subsonic aerodynamic simulations using RANS CFD

Goetten, F, Finger, D, Marino, M, Bil, C, Havermann, M and Braun, C 2019, 'A review of guidelines and best practices for subsonic aerodynamic simulations using RANS CFD', in Proceedings of the 11th Asia-Pacific International Symposium on Aerospace Technology, Gold Coast, 4 - 6 December 2019, pp. 227-245.


Document type: Conference Paper
Collection: Conference Papers

Title A review of guidelines and best practices for subsonic aerodynamic simulations using RANS CFD
Author(s) Goetten, F
Finger, D
Marino, M
Bil, C
Havermann, M
Braun, C
Year 2019
Conference name 11th Asia-Pacific International Symposium on Aerospace Technology (APISAT)
Conference location Gold Coast
Conference dates 4 - 6 December 2019
Proceedings title Proceedings of the 11th Asia-Pacific International Symposium on Aerospace Technology
Publisher Engineers Australia
Place of publication Gold Coast, QLD
Start page 227
End page 245
Total pages 19
Abstract This paper presents a review of guidelines and best practices for low-speed aerodynamic simulations of aircraft using finite volume RANS CFD methods. Recommendations for geometry preparation, domain size as well as surface and volume mesh refinements are given. It is found that 100 surface cells in the flow direction are usually appropriate for most aircraft components. RANS wall treatment methods are crucial, and only a full discretization of the boundary layer is appropriate in aerodynamic simulations. Different aspects of choosing temporal discretization, boundary conditions and solver algorithms are briefly presented. It is recommended to use a pressure-based solver due to its distinct advantages in low-speed flows. Both Spalart-Allmaras and Menters SST turbulence models have proven accurate for aerodynamic flows. Turbulence models should be adjusted with non-linear constitutive relations that greatly enhance prediction accuracy. The paper also presents multiple guidelines for checking plausibility that focus on flow visualizations of different components.
Subjects Aerodynamics (excl. Hypersonic Aerodynamics)
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ISBN 9781925627404
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