The Arizona State University was awarded a $200,000 Project Grant from the National Science Foundation Division of Chemical, Bioengineering, Environmental, and Transport Systems to conduct theoretical and numerical investigations of particle-vortex interactions in semi-dilute dusty flows. The three-year award, issued on August 1, 2022, will support research addressing poorly understood vortex dynamics where feedback forces from suspended dust particles lead to distinct growth and pairing processes in these flows. Specifically, the University will analyze the mechanisms by which dispersed inertial particles modulate isolated vortex tubes under two-way coupling and how particle inertia affects particle-vortex instabilities. It will also examine how conventional vortex-pair mergers change in semi-dilute dusty flows. The research will characterize the fate of particle-laden vortical structures using scaling laws accounting for the particle phase characteristics. Additionally, the award aims to inspire high school students from underserved communities to pursue STEM education through hands-on learning activities. This award is consistent with the National Science Foundation Engineering Directorate's mission to foster innovation and excellence in engineering research.
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