Abstract
This study investigates the power consumption and mixing time of a two-bladed stirrer during the mixing of viscoelastic fluids in the laminar region of flow. For the rheological part, we use a polymer with low-concentration aqueous solutions that present viscoelastic behavior. The rheological study performed on polyacrylamide solutions shows the viscoelastic behavior of the generalized “Kelvin-Voigt” model. The power consumption for the viscoelastic fluids is greater than that needed to mix Newtonian fluids at the same Reynolds number. The mixing time is found to depend strongly on the viscoelasticity of the solutions.
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Recommended by Associate Editor DaeJoong Kim
Sarra Youcefi was born in 1987 in Oran, Algeria. She received her Master’s degree and Ph.D. in Mechanical Engineering in 2010 and 2013, respectively, at the University of Science and Technology, Oran, Algeria.
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Youcefi, S., Youcefi, A. Power consumption and mixing time in rheologically complex fluids by a two-bladed impeller. J Mech Sci Technol 29, 543–548 (2015). https://doi.org/10.1007/s12206-015-0114-1
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DOI: https://doi.org/10.1007/s12206-015-0114-1