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  • Handle and control micron/sub-micron system accurately with precise flow control and understanding fluid properties
  • Investigate the flow patterns in the 4:1 micro-contraction channel as elasticity increases
  • Define transient vortex, its types and characteristics in microchannel flow using highly elastic fluid
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Rheology of viscoelastic fluid

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  • With higher fluid elasticity, transient vortex tends to be more asymmetric.
  • As Wi increases, the size of oscillating vortex increases in vortex growth region (D) and in transient vortex region (E)
  • Period of oscillating vortex (both symmetric and asymmetric) falls in between 2 to 6 s
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