Bubble dynamics inside micro domains was manipulated and used to pump liquid. Micropillars were formed inside two 1.5 mm wide and 220 µm high microchannels with a length of 23 mm. One microchannel had three arrays of micropillars with diameters of 40 µm and the other had a single array of micropillars with diameters of 30 µm. An array of five 200 µm by 200 µm heaters was deposited inside these micropillar arrays and was used to control bubble size and trajectory. A sequential power switching of the heaters was used to pump liquid in a desired direction with a flow rate of up to 133 µl/min for the three arrays micropillars microchannel and up to 44.4 µl/min for the single array micropillars device.
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Doctor of Philosophy (Ph.D.)
College of Engineering and Computer Science
Mechanical and Aerospace Engineering
Length of Campus-only Access
Doctoral Dissertation (Campus-only Access)
Khalil Arya, Faraz, "Controlled Bubble Dynamics Inside Micropillar Arrays" (2019). Electronic Theses and Dissertations. 6609.
Restricted to the UCF community until June 2024; it will then be open access.