Turbulent secondary flows are defined as Prandtl's secondary flow of the first or second kind,
the former produced by stretching and/or tilting of vorticity, the latter produced via spatial …

The present paper gives an overview of the recent modelling activities under NATO-STO
AVT-349, focussed on the understanding and modelling of boundary layers for …

The Reynolds number dependent flow resistance of heterogeneous rough surfaces is
largely unknown at present. The present work provides novel reference data for spanwise …

The question whether spatial resolution effects should be accounted for when performing
hot-wire (or particle image velocimetry) measurements in turbulent wall-bounded flows over …

A rapid predictive tool based on the linearised Reynolds-averaged Navier–Stokes equations
is proposed in this work to investigate secondary currents generated by streamwise …

Heterogeneous roughness in the form of streamwise aligned strips is known to generate
large scale secondary motions under turbulent flow conditions that can induce the intriguing …

This work presents direct numerical simulations (DNS) of a circular turbulent jet impinging
on rough plates. The roughness is once resolved through an immersed boundary method …

Simulation and scaling analysis of periodic surfaces with small-scale roughness in turbulent
Ekman flow Page 1 J. Fluid Mech. (2024), vol. 992, A8, doi:10.1017/jfm.2024.542 Simulation …

Spanwise heterogeneous surfaces have been found to modulate local turbulent entrainment
by inducing large-scale secondary flows (SFs). This work aims to clarify the variations of the …

Turbulent mixed convection in channel flows with heterogeneous surfaces is studied using
direct numerical simulations. The relative importance of buoyancy and shear effects …