Applied Math Seminar (AMS)

Surface gravity waves enhance the settling and dispersion of finite-size particles

Speaker: Michelle DiBenedetto, University of Washington

Location: Warren Weaver Hall 1314

Date: Friday, October 1, 2021, 2:30 p.m.



Surface gravity waves transport mass through a process referred to as Stokes drift. Finite-sized particles of arbitrary shape exhibit additional Stokes drift-like phenomena. In this talk, I explore the effects of particle inertia and shape on particle behavior in waves. I demonstrate both an angular analogue of Stokes drift for non-spherical particles and a vertical Stokes drift for settling particles. Experimental observations are compared with these analytical results, and these behaviors are discussed in the context of microplastic transport in the ocean.


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