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Heat transfer study of riblets
1991A wind tunnel study of the heat-transfer characteristics of surfaces with triangular profile riblets has been carried out in a two-dimensional turbulent boundary layer and the results compared with those of a smooth surface. The heat-transfer coefficient has been measured for the Reynolds number of 2.8 to 11.3×105 based on the streamwise length ...
K.-S. Choi, S. Hamid
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Drag reducing riblets on nektar++
2022Riblets, inspired from the ribbed texture of shark-skins have the potential to reduce turbulent skin-friction drag. Riblets are attractive due to its nature as a passive flow control device which requires no energy input to alter the flow favourably. An optimally designed riblet can achieve a skin-friction drag reduction of up to ∼ 10%, which can be ...
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Properties of riblets at supersonic speed
Applied Scientific Research, 1989The properties of a riblet surface at a Mach number of 1.25 are described. Direct measurement has been made of the surface shear stress on a riblet surface attached to a skin-friction balance mounted beneath the turbulent boundary layer growing along a wall of the RAE 2 ft×1 1/2 ft variable density transonic wind tunnel.
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Effects of contamination on riblet performance
Journal of Aircraft, 1989Thin-element polymeric film riblet surfacing materials previously shown to behave similarly to v-groove riblets in the reduction of aerodynamic drag have been tested to ascertain the effects of groove contamination. Three different levels of contamination were simulated for each of two kinds of contamination.
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Manufacturing of Durable Riblet Coating for Green Aviation
AIAA SCITECH 2025 ForumAIAA SCITECH 2025 Forum, January 6-10, 2025, Orlando, Florida, United ...
Benhalima, Abdelkader +4 more
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On the optimization of riblet's configuration
Proceeding of THMT-12. Proceedings of the Seventh International Symposium On Turbulence, Heat and Mass Transfer Palermo, Italy, 24-27 September, 2012, 2012Kie Okabayashi, Tomoaki Ikeda
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Numerical Simulation of Riblets on Airfoils and Wings
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2012MELE, Benedetto, TOGNACCINI, RENATO
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