Effects of oncoming flow conditions on the flow upstream of a forward-facing step subject to a thin boundary layer

• Published in: The International journal of heat and fluid flow Vol. 115; p. 109866
• Main Authors: Larose, Emil, Kerhervé, Franck, Fraigneau, Yann, Podvin, Bérengère, Morton, Chris, Martinuzzi, Robert J.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.09.2025
• Subjects: Boundary layer; Forward-facing step; Laminar; Recirculation regions; Separated flow; Turbulent; Unsteady dynamics; Turbulent; Forward-facing step; Recirculation regions; Separated flow; Laminar; Boundary layer; Unsteady dynamics

The influence of the oncoming flow on intrinsic flow dynamics of a forward-facing step (FFS) is investigated using planar, two-component particle image velocimetry (PIV) and direct numerical simulations (DNS) for thin (δ/H<1) laminar and turbulent boundary layers (LBL & TBL). Transition of th...