Abstract
To study the behavior of thixotropic yield stress fluids, information at the local scale is required in order to determine precisely the yield point value, and the shear rate and stresses can be obtained all over the flow. This study focuses on the flow in a large shear cell of a Laponite suspension. In order to be able to construct a local rheogram for this suspension, two different methods issued from fluid mechanics and solid mechanics are used. Local velocities are determined with a PIV technique, and local stresses are determined with the photoelasticimetry technique.
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Gibouin, F., Jarny, S., Monnet, P. et al. Coupled measurements of PIV and photoelasticimetry on a thixotropic yield stress fluid flow. Exp Fluids 55, 1839 (2014). https://doi.org/10.1007/s00348-014-1839-9
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DOI: https://doi.org/10.1007/s00348-014-1839-9