Analytical Study of Fluid Pressure-Sensing Mechanism in Microchannel for Microfluidic Device

This paper explores the concept of analytical study fluid–structure interaction, which involves the analysis of fluid flows in microchannel and pressure-sensing mechanism through microcantilever. The present research analysis of microcantilever displacement, deforming geometry at a different velocity, computation pressure, stress of cantilever at different widths and heights. A microcantilever surface displacement occurs when the fluid force is applied on it, the fluid flows at 3.33 cm/sec across microchannel, and microcantilever structure deformed due to its low value of young modulus 200 kPa and Poisson Ratio 0.23. The fluidic pressure-sensing mechanism optimized for design and selecting geometry using finite element modeling. It has been found that among all the designs, Model 4 design has the highest displacement 15.5 μm at a velocity of 0.0028 cm/sec and pressure is 400 KPa at t = 4 s. The design and simulation process has been done by using COMSOL Multiphysics 5.3a.