Shear strain analysis in FSS microchannel

Abstract

Microfluidics has motivated the development of various fields in biological engineering due to its advantages. The favorable benefits of using microfluidicsare being easy to fabricate, requirement of minimal fluid volumes, high-throughput and large scale integration. Microfluidic devices are strongly related with the fluid manipulation. However, the fluids have lack ability to resist deformation therefore the investigation on shear strain rate of fluid flow is required. In this paper, a study on the shear strain rate characteristics in Forward Facing Step (FFS) microchannel was conducted. The shear strain rate was investigated based on different Reynolds (Re) numbers before and after step conditions. The maximum shear strain rate was observed near the wall across the X-axis for both before and after step. Higher Re numbers produced higher shear strain rate distribution.