Interfacial jetting phenomena induced by focused surface vibrations.

Fluctuation-induced dynamics of multiphase liquid jets with ultra-low interfacial tension Fascinating jet morphologies are observed in perturbation-induced dripping-to-jetting transition in multiphase liquid systems characterized by ultra-low interfacial tensions

Jetting Visualization in an Acoustic Fluidized Bed Using X - Ray Computed Tomography

Introduction Understanding the jetting phenomena near the gas distributor plate in a fluidized bed is important to gassolids mixing, heat and mass transfer, and erosion on any bed internals, which can all affect the performance of the bed. Moreover, acoustic vibration in a fluidized bed can be used to enhance the fluidization quality of particulate matter. Visualizing the jetting structure usin...

Characterization of the hydrodynamic structure of a 3D acoustic fluidized bed

............................................................................................................................. xi CHAPTER 1: INTRODUCTION ................................................................................................ 1 1.1 Motivation ............................................................................................................................. 1 1....

Experimental and computational study of microfluidic flow-focusing generation of gelatin methacrylate hydrogel droplets

This work presents the experimental and computational study of droplet generation for hydrogel prepolymer solution in oil using a flow-focusing device. Effects of different parameters on hydrogel droplet generation and droplet sizes in a flow-focusing device were investigated experimentally and computationally. First, three dimensional (3D) computational simulations were conducted to describe t...

A Force Balance Model for the Size Prediction of Droplets Formed at T-junction with Xanthan Gum Solutions

Microfluidic droplet formation at a T-junction in the jetting regime was studied theoretically and an analytical force balance model was proposed to predict the diameter of droplets. The forces governing droplet production in the jetting regime include the shear, interfacial tension, linear momentum and inertial forces. Experiments were carried with non-Newtonian xanthan gum solutions as the di...