Berkeley Lectures in Chemical and Biomolecular Engineering presented by The Dow Chemical Company: Seeking Intersections Between Disciplines: “Boundaries” in Multiphase Flows

Lecture: Chem. & Biomol. Engineering Colloquium: Special Seminar | February 13 | 4-6 p.m. | Sutardja Dai Hall, Banatao Auditorium

 Howard Stone, Professor, Princeton University

 Department of Chemical Engineering

Fluid dynamics is a discipline with a long history, and has a distinctive feature that it links engineering, mathematics and physics, and provides many avenues for intersections with biology. In this talk I will provide one view of the ways that mechanics, and in particular fluid dynamics, yields insights into a wide variety of "multiphase" flow problems. The talk will begin with brief examples that include fluid motions generated by living organisms, flows influenced by surface microtextures, and various examples involving bacteria, biofilms and flows. We will then highlight three recent research studies in my group: (i) using the flow of a single bubble in a suspension-filled tube to act as a filter by particle size, and to do so in a speed-dependent manner, (ii) the motion of a particle adjacent to a flexible membrane, which produces interactions capable of separating particles by size, and (iii) patterns naturally formed in a café latte.