457382 Complex Fluids at Interfaces: Some Open-Ended Problems in Colloidal Systems
In this talk, we will use practical examples of these ubiquitous products to describe some of these complex flows. We will outline some of our efforts in using a scientific and statistical approach in understanding this behavior as well as strategies used to modify flow properties to meet those needs. We will describe the use of rheology, imaging as powerful tools to characterize these systems under various time, temperature and storage conditions. However, rheological characterization of these systems is also fraught with complications of high normal stresses, high inertia and slip behavior. We will endeavor to outline few of the open-ended problems that remain important but not well understood.