PhD, Chemical Engineering, University College London (2014-Present)
MSc, Chemical Engineering, University College London (2014)
BEng, Chemical Engineering, East China University of Science and Technology, Shanghai, China (2013)
By pulsing the gas flow entering the bottom distributor plate of a fluidized bed within a certain range of frequencies, a remarkably regular pattern of bubbles emerges, rather than the typical chaotic flow of bubbles similar to that in boiling water. This is especially clear in quasi-two dimensional beds (two vertical plates with a thin space filled with particles in between), in which a hexagonal array of bubbles rises. The robustness of the pattern appears to depend on the distributor plate, and the distance between the walls of the bed is also likely to play a role. Therefor Computational Fluid Dynamic Simulations of 2-dimensional and 3-dimensional fluidized beds of Geldart Group B powders will be undertaken to predict the fluid bed behaviour using an oscillating boundary condition at the distributor plate. As the patterns are so robust, finding these regular patterns will allow us to test different CFD codes, like a fingerprint, which is of increasing relevance as CFD codes are more and more used in fluidized bed simulation and design for research and industrial applications. The project is undertaken in collaboration with the Eindhoven University of Technology.