Impact of a forward-facing step on the development of crossflow instability

AF Rius-Vidales, M Kotsonis - Journal of Fluid Mechanics, 2021 - cambridge.org
The impact of a forward-facing step (FFS) on the development of stationary crossflow
instability is investigated on a swept wing model in a low-turbulence wind tunnel at chord …

Three-dimensional organisation of primary and secondary crossflow instability

J Serpieri, M Kotsonis - Journal of Fluid Mechanics, 2016 - cambridge.org
An experimental investigation of primary and secondary crossflow instability developing in
the boundary layer of a is presented. Linear stability theory is applied for preliminary …

Receptivity of crossflow instability to discrete roughness amplitude and location

G Zoppini, S Westerbeek, D Ragni… - Journal of Fluid …, 2022 - cambridge.org
The effect of discrete roughness elements on the development and breakdown of stationary
crossflow instability on a swept wing is explored. Receptivity to various element heights and …

Influence of a forward-facing step surface irregularity on swept wing transition

AF Rius-Vidales, M Kotsonis - AIAA Journal, 2020 - arc.aiaa.org
An experimental study has been carried out to determine the influence of a forward facing-
step (FFS) on the laminar–turbulent transition of a swept wing boundary layer. Wind tunnel …

Unsteady interaction of crossflow instability with a forward-facing step

AF Rius-Vidales, M Kotsonis - Journal of Fluid Mechanics, 2022 - cambridge.org
Experiments have been conducted on a swept wing model in a low-turbulence wind tunnel
at chord Reynolds number of to investigate the unsteady interaction of a forward-facing step …

Experimental base flow modification on a swept wing using plasma forcing

K Peng, JPW Arkesteijn, F Avallone, M Kotsonis - Physics of Fluids, 2022 - pubs.aip.org
This work experimentally investigates plasma actuator (PA) forcing effects on the base flow
and developing crossflow (CF) instabilities in a swept wing boundary layer. Spanwise …

Cancellation of crossflow instabilities through multiple discrete roughness elements forcing

G Zoppini, T Michelis, D Ragni, M Kotsonis - Physical Review Fluids, 2022 - APS
The presented work introduces a cancellation technique, based on the linear superposition
of stationary crossflow instabilities (CFIs) through the application of a streamwise series of …

Transition due to isolated roughness in a swept wing boundary layer

G Zoppini, D Ragni, M Kotsonis - Physics of Fluids, 2022 - pubs.aip.org
The present work is dedicated to the investigation of the effect of an isolated roughness
element on a swept wing boundary layer. In particular, the flow modifications incurred by a …

Experimental Structural Design of a Novel Variable-Sweep Wing Based on a Four-Bar Planar Linkage

G Cheng, K Song, T Jiang, J Yang… - Journal of Aerospace …, 2024 - ascelibrary.org
The variable-sweep wing, as an important morphing wing technology, has received
widespread attention because it can change the sweep angle according to different flight …

Effect of two-dimensional surface irregularities on swept wing transition: forward facing steps

AF Rius Vidales, M Kotsonis, AP Antunes… - 2018 Fluid Dynamics …, 2018 - arc.aiaa.org
At the beginning of the 20th century, the benefits of air transportation were only available to
a handful of travelers. Nowadays, it is an ordinary method of transportation, which 3.8 billion …