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- Type of Document: M.Sc. Thesis
- Language: English
- Document No: 48354 (58)
- University: Sharif University of Technology, International Campus, Kish Island
- Department: Science and Engineering
- Advisor(s): Moosavi, Ali
- Abstract:
- The formation of droplets at a T-junction in a micro channel network is primarily influenced by the pressure difference across the interface in the squeezing regime. Accurate measurements of droplet velocity and pressure profiles are difficult to obtain experimentally, yet these are the basic parameters required. Droplet micro fluidics has shown great potential for biological assays, chemical reactions and polymer emulsions. High stability allows the droplets to work as stable and isolated reactors that open up for parallel and serial reactions where each droplet can be screened individually. The purpose was to fabricate such systems, establish stable droplet generation where droplet volumes range from micro and to suggest further improvement. This thesis aims to examine water-in-oil or water-in-fc43 droplet generation in micro fluidic systems where a fabrication method is optimized and functional devices are manufactured. The thesis presents droplet formation and pressure drop in micro fluidic channels by theoretical simulations work. Different droplet regimes are found in simulation work by altering flow rates and flow rate ratios of two immiscible fluids. Further, the results show that the droplet size is dependent on the flow rates and flow rate ratios of the two fluids, pressure difference, and channel dimensions. The purpose of this research was to utilize computational fluid dynamics software to expedite the fabrication and design process by simulating time-dependent data as droplets flow through a channel
- Keywords:
- Microchannel ; Water ; Droplet Formation ; Fluoro Carbon 43
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