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Droplet breakup in a T-Junction in a smaller channel
Posted 4 févr. 2012, 19:09 UTC−5 MEMS & Nanotechnology, Fluid & Heat, MEMS & Piezoelectric Devices, Microfluidics, Geometry, Mesh, Studies & Solvers Version 3.5a 0 Replies
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I have a specific set of parameters for wich I am trying to simulate the breakup of droplets in a T-junction. Entering these parameters for the geometry from the example MEMS module[1] gives fine results (droplets form).
However, if I slash the channel size in half (50x50x20 mum) I get no droplets but a coflow regime, where the dispersed phase occupies the upper part of the channel.
Now I have a real life system that has exactly the same dimensions (50x50x20 mum) and I can generate droplets for the same set of parameters in that.
So, I am somewhat stumped on how to proceed from here. I tried doubling the meshsize and increased the timeframe of the simulation and even fiddled around with the parameters, but it always gives me the cowflow regime.
Any help appreciated.
[1] The geometry in the example module is a 100x100x50 mum channel.
Hello raw
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