Blar i TKD - Institutt for maskin, elektronikk og kjemi på forfatter "Örlü, Ramis"

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    • Direct Numerical Simulations of Turbulent Flow in Helical Pipes 

      Lupi, V.; Örlü, Ramis; Schlatter, P. (ERCOFTAC Series;, Chapter; Peer reviewed; Conference object; Journal article, 2023)
      Direct numerical simulations of the fully developed turbulent flow through helical pipes are performed. The numerical procedure is described, and a validation of the volume force driving the flow is presented. A comparison ...

    • Flow resistance over heterogeneous roughness made of spanwise-alternating sandpaper strips 

      Frohnapfel, B.; von Deyn, L. H.; Yang, J.; Neuhauser, J.; Stroh, A.; Örlü, Ramis; Gatti, D. (Peer reviewed; Journal article, 2024)
      The Reynolds number dependent flow resistance of heterogeneous rough surfaces is largely unknown at present. The present work provides novel reference data for spanwise-alternating sandpaper strips as one idealised case ...

    • In-Situ Analysis of Backflow Events and Their Relation to Separation in Wings Through Well-Resolved LES 

      Mallor, F.; Liu, J.; Peplinski, A.; Vinuesa, R.; Örlü, Ramis; Weinkauf, Tino; Schlatter, P. (ERCOFTAC (European Research Community on Flow, Turbulence and Combustion);, Chapter; Peer reviewed; Conference object; Journal article, 2023)
      Wall-bounded turbulent flows as those occurring in transportation (e.g. aviation) or industrial applications (e.g turbomachinery), are usually subjected to pressure gradients (PGs). The presence of such PGs affects greatly ...

    • Measurements in a Turbulent Channel Flow by Means of an LDV Profile Sensor 

      Pasch, S.; Leister, R.; Gatti, D.; Örlü, Ramis; Frohnapfel, B.; Kriegseis, J. (Peer reviewed; Journal article, 2023)
      Spatially and temporally resolved velocity measurements in wall-bounded turbulent flows remain a challenge. Contrary to classical laser Doppler velocimetry (LDV) measurements, the laser Doppler velocity profile sensor ...