Three-dimensional geometry and topology effects in viscous streaming

Fan Kiat Chan, Yashraj Bhosale, Tejaswin Parthasarathy, Mattia Gazzola

Research output: Contribution to journalArticlepeer-review


Recent studies on viscous streaming flows in two dimensions have elucidated the impact of body curvature variations on resulting flow topology and dynamics, with opportunities for microfluidic applications. Following that, we present here a three-dimensional characterization of streaming flows as functions of changes in body geometry and topology, starting from the well-known case of a sphere to progressively arrive at toroidal shapes. We leverage direct numerical simulations and dynamical systems theory to systematically analyse the reorganization of streaming flows into a dynamically rich set of regimes, the origins of which are explained using bifurcation theory.
Original languageEnglish (US)
JournalJournal of Fluid Mechanics
StatePublished - Feb 25 2022


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