Design and Numerical Evaluation of a Split-and-Recombined ‘(Y-H)_αβ’ Micromixer

A novel split-and-recombined (SAR) micromixer namely '( -) ' composed with a 'Y' and a 'H' shaped mixing unit is proposed.The proposed '( -) ' micromixer is composed of four identical elements that are connected by angles and .The value of alpha () is varied from 0 to 90 to analyze the effect on mixing performance.Numerical analysis of fluid flow and mixing performance is conducted for miscible fluids, using Fluent 15 software for Reynolds numbers from 0.1 to 100.A well-known SAR mixer called 'H-C' is also analyzed for comparison.The numerical data shows that connecting angle has a strong effect on the SAR process; the efficiency increases from 65% to 98% when alpha () changes from 0 to 45 at = 100.The '( -) ' mixer shows notably lower pressure drop than the 'H-C' mixer irrespective of the value of connecting angle and Reynolds numbers.The proposed mixer has a significantly lower Mixing Energy Cost (MEC) compared to the '( -)' mixer.