Discontinuous Galerkin time discretizations are combined with the mixed finite element and continuous finite element methods to solve the miscible displacement problem. Stable schemes of arbitrary order in space and time are obtained. Under minimal regularity assumptions on the data, convergence of the scheme is proved by using compactness results for functions that may be discontinuous in time.

We study the existence of multiple equilibrium states in a simple fluid network using Newtonian fluids and laminar flow. We demonstrate theoretically the presence of hysteresis and bistability, and we confirm these predictions in an experiment using two miscible fluids of different viscosity-sucrose solution and water. Possible applications include blood flow, microfluidics, and other network f...

Recently achieved two-component dipolar Bose-Einstein condensates open exciting possibilities for the study of mixtures ultra-dilute quantum liquids. While non-dipolar self-bound are necessarily miscible with an approximately fixed ratio between two densities, density case is free. As a result, present qualitatively novel and much richer physics, characterized by three possible ground-state pha...

The effective use of biodegradable polymers relies on the ability to control the onset of and time needed for degradation. Preferably, the material properties should be retained throughout the intended time frame, and the material should degrade in a rapid and controlled manner afterward. The degradation profiles of polyester materials were controlled through their miscibility. Systems composed...

This note describes the application of nanoTA in the examination of a SAN/PC polyblend. The probe tip heats the sample locally at 25oC/sec while simultaneously monitoring the softening as the sample undergoes a glass transition Tg. Transition Temperature Microscopy is used to map mixing behavior and variations in phase composition originating at the nanoscale. Pure SAN and PC domains had latera...