473686 Estimation of the Drying Length during Particle Assembly By Convective Deposition

Monday, November 14, 2016
Market Street (Parc 55 San Francisco)
Kedar Joshi and James F. Gilchrist, Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA

Convective deposition is a widely used tool to create well-ordered particle arrays by drawing a suspension across a substrate utilizing evaporation-driven flow to localize and order particles in a thin film. We re-examine the assumption that the length scale associated with the drying front in convective deposition is constant. Over a wide range of parameters, we measure the drying length scale and note that it is inversely proportional to the deposition speed. Using a model of Darcy flow through the deposited particles, we develop a model that is more robust in describing convective deposition than those previously suggested by Nakayama et al.

Extended Abstract: File Not Uploaded
See more of this Session: Poster Session: Fluid Mechanics (Area 1J)
See more of this Group/Topical: Engineering Sciences and Fundamentals