Projekte

SPP 1881: How do turbulent superstructures interact with skin-friction drag?
Additive Fertigung im ISTM Strömungslabor (Artikel von Formlabs)

Journal Publications

2024

Flow resistance over heterogeneous roughness made of spanwise-alternating sandpaper strips
Frohnapfel, B.; Deyn, L. von; Yang, J.; Neuhauser, J.; Stroh, A.; Örlü, R.; Gatti, D.
2024. Journal of Fluid Mechanics, 980, 1–35. doi:10.1017/jfm.2024.40

2023

Drag of Spanwise Heterogeneous Surface Topographies. Dissertation
Deyn, L. H. von
2023, Januar 16. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000154384

2022

From drag-reducing riblets to drag-increasing ridges
von Deyn, L. H.; Gatti, D.; Frohnapfel, B.
2022. Journal of Fluid Mechanics, 951, Art.-Nr.: A16. doi:10.1017/jfm.2022.796

Ridge-type roughness: from turbulent channel flow to internal combustion engine
Deyn, L. H. von; Schmidt, M.; Örlü, R.; Stroh, A.; Kriegseis, J.; Böhm, B.; Frohnapfel, B.
2022. Experiments in Fluids, 63 (1), 18. doi:10.1007/s00348-021-03353-x

2021

Parametric Study on Ridges Inducing Secondary Motions in Turbulent Channel Flow
Deyn, L. H. von; Gatti, D.; Frohnapfel, B.; Stroh, A.
2021. Proceedings in applied mathematics and mechanics, 20 (1), e202000139PAMM. doi:10.1002/pamm.202000139

2020

Do riblets exhibit fully rough behaviour?
Gatti, D.; Deyn, L. von; Forooghi, P.; Frohnapfel, B.
2020. Experiments in fluids, 61 (3), Article: 81. doi:10.1007/s00348-020-2921-0

2019

Direct Numerical Simulations of Bypass Transition over Distributed Roughness
Deyn, L. H. von; Forooghi, P.; Frohnapfel, B.; Schlatter, P.; Hanifi, A.; Henningson, D. S.
2019. AIAA journal, 1–10. doi:10.2514/1.J057765

Conference Contributions

2023

Secondary motion impact on momentum and heat transfer in a fully developed turbulent channel flow
Stroh, A.; Deyn, L. H. von; Schäfer, K.; Forooghi, P.; Frohnapfel, B.
2023, September 11. 10th International Symposium on Turbulence, Heat and Mass Transfer (THMT 2023), Rom, Italien, 11.–15. September 2023

The global drag of heterogeneously rough surfaces
Schmidt, C. S. C.; Deyn, L. von; Gatti, D.; Neuhauser, J.; Frohnapfel, B.
2023, September 5. 18th European Turbulence Conference (ETC 2023), Valencia, Spanien, 4.–6. September 2023

2021

Stereo-PIV-Messungen in der Querströmungsebene einer turbulenten Kanalströmung
Pasch, S.; Hehner, M. T.; Deyn, L. H. von; Serpieri, J.; Gatti, D.; Frohnapfel, B.; Kriegseis, J.
2021. Experimentelle Strömungsmechanik. Hrsg.: A. Fischer, Deutsche Gesellschaft für Laser-Anemometrie - German Association for Laser Anemometry GALA e.V

Riblets in the rough regime
Deyn, L. von; Hehner, M. T.; Serpieri, J.; Kriegseis, J.; Gatti, D.; Frohnapfel, B.
2021. ETMM13 conference proceedings

2019

Turbulent channel flows with secondary motions: a concerted DNS and experimental study
Deyn, L. von; Örlü, R.; Stroh, A.; Gatti, D.; Kriegseis, J.; Frohnapfel, B.
2019. 11th International Symposium on Turbulence and Shear Flow Phenomena (TSFP11), Southampton, UK, July 30 - August 2, 2019

Riblets in fully developed turbulent channel flow - An experimental campaign
Deyn, L. H. von; Coppini, L.; Hehner, M. T.; Kriegseis, J.; Gatti, D.; Forooghi, P.; Frohnapfel, B.
2019. European Drag Reduction and Flow Control Meeting (EDRFCM 2019), Bad Herrenalb, Deutschland, 26.–29. März 2019