Open AccessEstimation of the flows mixing efficiency inside T-micromixer with an external perturbation for low Reynolds numbers
Author(s) -
A. Yu. Kravtsova,
P. E. Ianko,
M. V. Kashkarova,
A. V. Bilsky
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012159
Subject(s) - reynolds number , micromixer , mechanics , microchannel , wavelength , mixing (physics) , amplitude , perturbation (astronomy) , physics , geometry , mathematics , optics , turbulence , quantum mechanics
The flow pattern regimes and mixing quantities in case of an external perturbation for low Reynolds numbers in a T-shape microchannel were studied experimentally using the LIF technique. Formation of a hydrodynamic wave travelling along the outlet channel for the stratified regime was discovered. The wave amplitude is 0.057 W out . The wavelength corresponding to distance between two nearest pits is 3.86 D h . The change of mixing efficiency between undisturbed and perturbated flows in each of the considered sections is less than 6%. However, the arising of wave causes a decrease in the distance at which the flows are completely mixed.