Prof. Sundaresan has long been a pioneer in developing methods of simulating fluidized beds, including advancing computational fluid dynamics - discrete element method (CFD-DEM) simulations. Here, we seek to honor the invaluable mentorship Chris Boyce received as a postdoc in Sundar's research group conducting CFD-DEM simulations by presenting recent CFD-DEM simulation work from Prof. Boyce's group. Dual mode horizontal vibration has recently been used to convey grains horizontally in microfluidic devices. Here, we simulate fluidized beds undergoing dual mode vibration to demonstrate (1) how adding gas flow enables grains to be conveyed faster in microfluidic devices and (2) how dual mode-vibration of bubbling fluidized beds can convey particles and bubbles horizontally to increase mixing of particles. This work inspires incorporation of more complex waveforms to excite grains in order to achieve favorable transport properties.
