Abstract
AbstractAn investigation of dependence of laminar mixing efficiency of a motionless mixer upon viscosity ratio at low Reynolds number (⩽3) was performed. Viscosity ratios up to 340 were investigated. The liquids were aqueous solutions of carboxymethylcellulose (CMC). Two transparent liquid streams, one marked with a fluorescing dye, were injected into a pipe housing five elements of an SMX mixer. The degree of mixing was evaluated by imaging a downstream cross‐section of pipe using laser induced fluorescence (LIF). Highly resolved spatial variations of fluorescence intensity were recorded using a CCD camera. Mathematical evaluations using correlograms, scale of segregation, COV, and intensity histograms are presented.
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