XIA Guodong, LI Jian, WU Hongjie, et al. Mixing performance of asymmetric split and recombine micromixer with fan-shaped cavity[J]. CIESC Journal, 2011, (5): 1219-1225.
XIA Guodong, LI Jian, WU Hongjie, et al. Mixing performance of asymmetric split and recombine micromixer with fan-shaped cavity[J]. CIESC Journal, 2011, (5): 1219-1225.DOI:
A novel design of passive micromixer based on mechanism of planar asymmetric split and recombine(P-ASAR)of fluid stream was proposed.Mixing performance of this micromixer was analyzed numerically with three-dimensional Navier-Stokes equations.The steady laminar flow was solved by using the finite-volume method and SIMPLE algorithm.The mixing index as the measure of mixing performance
was investigated at a range of Reynolds numbers(1—80).The result showed significant increase of mixing index for the P-ASAR micromixer with fan-shaped cavity in the sub-channel.The geometrical parameters of fan-shaped cavity affected mixing index of this type of micromixer.With mixing intensity and pump power consumption in mind
mixing index of the P-ASAR micromixer with fan-shaped cavity could reach around 78% when the width ratio of major sub-channel to fan-shaped cavity channel is 1/3.