From the 1 of 5 linked papers with an AI index.
5 papers
Coherent structure modulation and recovery in drag-reduced turbulent boundary layers
Traian Bistriceanu, Vyacheslav A. Kovalyov, Pradyumn Mishra +3
Drag reduction is achieved by a steady square-wave forcing of the spanwise wall velocity, based on the experiments in Knoop et al. (Phys. Rev. Fluids, 10, 2025). Particle tracking…
Measurements of non-linear energy transfer in canonical and drag-reduced turbulent boundary layers
Max W. Knoop, Bas W. van Oudheusden, Rahul Deshpande
Three-dimensional particle-tracking velocimetry (3D-PTV) measurements were used to compute the spectral transport of the Reynolds-stress tensor. The experimental framework is valid…
Turbulent boundary layers altered by passively rotating discs
Max W. Knoop, Pierre Ricco
The study experimentally investigates how flush‑mounted, passively rotating discs affect turbulent boundary‑layer skin‑friction drag in a wind tunnel, finding a modest 3% drag redu…
Passive transverse forcing of turbulent boundary-layer flow using sinusoidal surface grooves
Max W. Knoop, Bas W. van Oudheusden, Luuk Pelkmans +1
A surface geometry consisting of parallel, meandering streamwise grooves has been experimentally studied as an alternative means of passive transverse forcing of turbulent boundary…
Response of a turbulent boundary layer to steady, square-wave-type transverse wall-forcing
Max W. Knoop, Rahul Deshpande, Ferry F. J. Schrijer +1
This study investigates the spatial evolution of a zero pressure gradient turbulent boundary layer (TBL) imposed by a square-wave (SqW) of steady spanwise wall-forcing, which varie…