Computational fluid dynamics

Analysis and optimization of particle grinding in a spiral air jet mill

Particle size reduction is a highly energy intensive operation and even small improvements in efficiency can result in significant energy savings. The focus of the present work is analysis and optimization of an air jet mill, which is a versatile equipment used in many industries for fine grinding of powders to sizes less than around 10 microns. The objective of the project is be to develop a detailed simulation model using computational fluid dynamics (CFD) and the discrete element method (DEM).

Flow control in microfluidic networks

Microfluidics technology has been seen to have great potential in lab-on-a-chip applications including chemical analysis and diagnostics. However, flow control in these networks requires either a pneumatic or fluidic control layer over the microfluidic layer. Recent studies have shown that integrated flow control may be achieved by introducing capacitive elements or obstacles in the flow path so that system response becomes non-linear as required for flow switching.