Numerical and Experimental Study of Effects of Triangular Cross-Section Riblets on DU89-134 Airfoil

Carlo Brunelli; Matija Avirović; Bart Janssens; Benoît Marinus; Mark Runacres

doi:10.1007/s42496-025-00258-4

Numerical and Experimental Study of Effects of Triangular Cross-Section Riblets on DU89-134 Airfoil

Vrije Universiteit Brussel

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

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Abstract

The research investigates the effects of triangular cross-section transverse riblets on the aerodynamic performance of the DU89-134 airfoil. The free-stream conditions are Reynolds number 500,000 and angle of attack 5°, and the riblets are positioned on the suction side at the following chordwise locations [0.3, 0.4, 0.5, 0.6, 0.7]. A comprehensive three-pronged approach includes experimental methods, RANS simulations, and implicit LES. The implicit LES method used in this study is relatively novel and demonstrates consistency with the findings from both the RANS simulations and the experimental results. Despite this alignment, no significant improvement in overall aerodynamic performance has been observed for the tested configurations.

Originalsprache	Englisch
Fachzeitschrift	Aerotecnica Missili & Spazio
DOIs	https://doi.org/10.1007/s42496-025-00258-4
Publikationsstatus	Veröffentlicht - März 2025

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title = "Numerical and Experimental Study of Effects of Triangular Cross-Section Riblets on DU89-134 Airfoil",

abstract = "The research investigates the effects of triangular cross-section transverse riblets on the aerodynamic performance of the DU89-134 airfoil. The free-stream conditions are Reynolds number 500,000 and angle of attack 5°, and the riblets are positioned on the suction side at the following chordwise locations [0.3, 0.4, 0.5, 0.6, 0.7]. A comprehensive three-pronged approach includes experimental methods, RANS simulations, and implicit LES. The implicit LES method used in this study is relatively novel and demonstrates consistency with the findings from both the RANS simulations and the experimental results. Despite this alignment, no significant improvement in overall aerodynamic performance has been observed for the tested configurations.",

author = "Carlo Brunelli and Matija Avirovi{\'c} and Bart Janssens and Beno{\^i}t Marinus and Mark Runacres",

year = "2025",

month = mar,

doi = "10.1007/s42496-025-00258-4",

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journal = " Aerotecnica Missili \& Spazio",

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T1 - Numerical and Experimental Study of Effects of Triangular Cross-Section Riblets on DU89-134 Airfoil

AU - Brunelli, Carlo

AU - Avirović, Matija

AU - Janssens, Bart

AU - Marinus, Benoît

AU - Runacres, Mark

PY - 2025/3

Y1 - 2025/3

N2 - The research investigates the effects of triangular cross-section transverse riblets on the aerodynamic performance of the DU89-134 airfoil. The free-stream conditions are Reynolds number 500,000 and angle of attack 5°, and the riblets are positioned on the suction side at the following chordwise locations [0.3, 0.4, 0.5, 0.6, 0.7]. A comprehensive three-pronged approach includes experimental methods, RANS simulations, and implicit LES. The implicit LES method used in this study is relatively novel and demonstrates consistency with the findings from both the RANS simulations and the experimental results. Despite this alignment, no significant improvement in overall aerodynamic performance has been observed for the tested configurations.

AB - The research investigates the effects of triangular cross-section transverse riblets on the aerodynamic performance of the DU89-134 airfoil. The free-stream conditions are Reynolds number 500,000 and angle of attack 5°, and the riblets are positioned on the suction side at the following chordwise locations [0.3, 0.4, 0.5, 0.6, 0.7]. A comprehensive three-pronged approach includes experimental methods, RANS simulations, and implicit LES. The implicit LES method used in this study is relatively novel and demonstrates consistency with the findings from both the RANS simulations and the experimental results. Despite this alignment, no significant improvement in overall aerodynamic performance has been observed for the tested configurations.

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DO - 10.1007/s42496-025-00258-4

M3 - Article

SN - 2524-6968

JO - Aerotecnica Missili & Spazio

JF - Aerotecnica Missili & Spazio

ER -

Numerical and Experimental Study of Effects of Triangular Cross-Section Riblets on DU89-134 Airfoil

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