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Ramis Örlü

Ramis Örlü

Job title
  • Professor
Visiting address
  • Pilestredet 35, 0166 Oslo
Phone
  • Mobile: +46 762 16 526 3
  • Office: +47 672 36 142
E-mail
  • ramis.orlu@oslomet.no
Affiliation

About

Ramis Örlü is a Professor of Fluid Mechanics at OsloMet – Oslo Metropolitan University. He earned a Diplom-Ingenieur (Dipl.-Ing.) degree in Mechanical Engineering from Ruhr University Bochum in 2003, followed by a Ph.D. in Engineering Mechanics, specializing in Experimental Fluid Dynamics and Turbulence, from KTH Royal Institute of Technology in 2009. In 2015, he was appointed docent in Experimental Fluid Physics at KTH, where he has been a researcher since 2009 and continues to contribute on a part-time basis. Since 2017, he has also held an adjunct professorship at the University of Bologna.

In 2023, he joined OsloMet as an Associate Professor of Fluid Mechanics and was promoted to Full Professor in 2024. Over the years, he has held fellowships and guest professorships in Germany, Italy, and Turkey. His research focuses on the fundamental aspects of turbulent flows, with particular emphasis on skin-friction and drag reduction through passive and active flow-control techniques. He employs large-scale wind tunnel facilities and integrates high-fidelity simulations to cross-validate experimental and computational results. In addition to his research, he is the Editor-in-Chief of Experimental Thermal and Fluid Science, serves on the Editorial Advisory Boards of Flow, Turbulence and Combustion and Advances in Aerodynamics, and has co-edited the Progress in Turbulence series. He is also the recipient of the FLUCOME Nakayama Award (2025) and the Friedrich Wilhelm Bessel Research Award from the Alexander von Humboldt Foundation (2026).

Field of study

Fluid mechanics   Measurement techniques   Turbulence   Experimental Fluid Dynamics   Aerodynamics

Administrative field of work

Master programmes   Erasmus+   Internationalisation   Exchange and mobility   PhD programmes

Research groups

Publications and research

Scientific publications

Hajipour, Majid; Schlatter, Philipp; Örlü, Ramis (2025). Experimental investigation of the turbulent boundary-layer footprint on the wake of a wing section. Physics of Fluids. Vol. 37.
https://doi.org/10.1063/5.0304581

Mallor, F.; Örlü, Ramis ; Schlatter, P. (2025). Spatial Averaging Effects in Adverse Pressure Gradient Turbulent Boundary Layers. Flow Turbulence and Combustion.
https://doi.org/10.1007/s10494-024-00568-w

Örlü, Ramis ; Talamelli, A.; Peinke, J.; Oberlack, M. (2024). Progress in Turbulence X. Proceedings of the iTi Conference in Turbulence 2023. ISBN: 9783031559242. 343 p. Springer Nature.
https://hdl.handle.net/11250/4558278

Foschi, E.; Örlü, Ramis ; Talamelli, A.; Schlatter, P. (2024). On intermittency of the turbulent asymptotic suction boundary layer. Örlü, Ramis; Talamelli, A.; Peinke, J.; Oberlack, M. (Ed.). Progress in Turbulence X. Proceedings of the iTi Conference in Turbulence 2023. p. 275-280. Springer Nature.
https://doi.org/10.1007/978-3-031-55924-2_37

Dróżdż, A.; Örlü, Ramis ; Sokolenko, V.; Schlatter, P.; Elsner, W.; Niegodajew, P. (2024). Hot-wire spatial resolution issues in adverse pressure gradient turbulent boundary layers. Measurement. Vol. 237.
https://doi.org/10.1016/j.measurement.2024.115229

Mallor, F.; Vila, C. Sanmiguel; Hajipour, M.; Vinuesa, R.; Schlatter, P.; Örlü, Ramis (2024). Experimental characterization of turbulent boundary layers around a NACA 4412 wing profile. Experimental Thermal and Fluid Science. Vol. 160.
https://doi.org/10.1016/j.expthermflusci.2024.1113

Lupi, V.; Canton, J.; Rinaldi, E.; Örlü, Ramis ; Schlatter, P. (2024). Modal stability analysis of toroidal pipe flow approaching zero curvature. Journal of Fluid Mechanics. Vol. 987.
https://doi.org/10.1017/jfm.2024.324

Frohnapfel, B.; Deyn, L. H. von; Yang, J.; Neuhauser, J.; Stroh, A.; Örlü, Ramis ; Gatti, D. (2024). Flow resistance over heterogeneous roughness made of spanwise-alternating sandpaper strips. Journal of Fluid Mechanics. Vol. 980.
https://doi.org/10.1017/jfm.2024.40

Mallor, F.; Vinuesa, R.; Örlü, Ramis ; Schlatter, P. (2024). High-fidelity simulations of the flow around a NACA 4412 wing section at high angles of attack. International Journal of Heat and Fluid Flow. Vol. 110.
https://doi.org/10.1016/j.ijheatfluidflow.2024.109

Pasch, S.; Leister, R.; Gatti, D.; Örlü, Ramis ; Frohnapfel, B.; Kriegseis, J. (2023). Measurements in a Turbulent Channel Flow by Means of an LDV Profile Sensor. Flow Turbulence and Combustion.
https://doi.org/10.1007/s10494-023-00469-4



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These publications are obtained from Norwegian Research Information Repository. The list may be incomplete.

Research reports

Örlü, Ramis (2009). Experimental studies in jet flows and zero pressure-gradient turbulent boundary layers. ISBN: 9789174153699. 325 p. KTH Royal Institute of Technology.
https://hdl.handle.net/11250/3888085



These publications are obtained from Norwegian Research Information Repository. The list may be incomplete.

Dissemination

Örlü, Ramis ; Schlatter, Philipp (2025). Editorial of Special Issue (SI) on “Large-scale control of wall-bounded flow”. International Journal of Heat and Fluid Flow.
https://doi.org/10.1016/j.ijheatfluidflow.2025.109

Sujar-Garrido, P.; Schmidt, C.; Frohnapfel, B.; Örlü, Ramis (2024). Hot-wire measurements in the near-wake of a 3D bluff body. 1st European Fluid Dynamics Conference (EFDC1). Euromech.
https://hdl.handle.net/11250/3308435

Dróżdż, A.; Örlü, Ramis ; Niegodajew, P.; Sokolenko, Vladislav; Schlatter, P.; Elsner, W. (2023). Hot-wire spatial resolution effects in adverse-pressure-gradient turbulent boundary layers. Proc. 14th Int. ERCOFTAC Symp. on Engineering, Turbulence, Modeling and Measurements (ETMM14).
https://hdl.handle.net/11250/4869987

Sujar-Garrido, P.; Schmidt, C.; Frohnapfel, B.; Örlü, Ramis (2023). A hot-wire anemometry guide on where to or not to measure. 18th EUROMECH European Turbulence Conference. EUROMECH.
https://hdl.handle.net/11250/5031035

Rius-Vidales, A. F.; Örlü, Ramis ; Sujar-Garrido, P.; Kotsonis, M. (2023). On the characterization of the boundary-layer flow on a rotating slender cone using PIV. 76th Annual Meeting of the Division of Fluid Dynamics. APS.
https://hdl.handle.net/11250/4069057

Mallor, F.; Vila, C. Sanmiguel; Vinuesa, R.; Örlü, Ramis ; Schlatter, P. (2022). Adverse pressure gradient effects on the turbulent boundary layer around a NACA 4412 wing profile: an experimental investigation. 14th European Fluid Mechanics Conference. EUROMECH.
https://hdl.handle.net/11250/3802879

Lupi, V.; Örlü, Ramis ; Schlatter, P. (2022). On the origin of swirl-switching in 90∘-bend pipe flow. 14th European Fluid Mechanics Conference. EUROMECH.
https://hdl.handle.net/11250/3260369

Sujar-Garrido, P.; Örlü, Ramis (2022). Plasma vortex generators used for separation control and drag reduction on a bluff body. European Drag Reduction and Flow Control Meeting (EDRFCM).
https://hdl.handle.net/11250/3544364

Pasch, S.; Gatti, D.; Leister, R.; Frohnapfel, B.; Kriegseis, J.; Örlü, Ramis (2022). Measurement in a turbulent channel flow by means of an LDV profile sensor. European Drag Reduction and Flow Control Meeting (EDRFCM).
https://hdl.handle.net/11250/3428801

Lupi, V.; Canton, J.; Rinaldi, E.; Örlü, Ramis ; Schlatter, P. (2022). Modal stability analysis of toroidal pipe flow approaching zero curvature. 14th ERCOFTAC SIG 33 Workshop, Progress in Flow Instability, Transition and Control. ERCOFTAC.
https://hdl.handle.net/11250/4108036



See all publications


These publications are obtained from Norwegian Research Information Repository. The list may be incomplete.
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