What question did this study set out to answer?

This work aims to understand vortex dynamics arising from the motion of perforated and solid plates.

June 4, 2026Open Access

Vortex Dynamics of Unsteady Plate Motions

Key Points

This work aims to understand vortex dynamics arising from the motion of perforated and solid plates.
Conducted experiments with perforated plates to assess the impact of open area fraction on flow dynamics.
Utilized real-time Particle Image Velocimetry (PIV) for feedback on the plate's motion.
Developed RapidPIV software for high-frame-rate fluid flow visualization.
Achieved successful vortex retention above the leading edge of moving plates.
Identified qualitative predictions for the interactions between plates and leading-edge vortices using airfoil theory.
Demonstrated significant improvements in fluid flow visualization capabilities at over 1000 frames per second.

Abstract

The vortex dynamics which result from unsteady motions of perforated and solid plates is studied from complementary experimental and theoretical perspectives. The flow that results from starting a perforated plate from rest is studied, and the effect of changing the plate's open area fraction is investigated. Contributions culminating in successfully holding a vortex above the leading edge of a plate while it is in motion, using real-time PIV to provide controlled feedback of the plate's motion, are also presented. These contributions include RapidPIV, a method and software which enables fluid flows to be visualized in real time at over 1000 frames per second, and a steady thin airfoil theory which makes qualitatively useful predictions about the nature of plates and thin airfoils interacting with leading-edge vortices.

Read Full Paperexternally

Ask AI

Helpful

Bookmark

View Full Paper