Abstract
The transient, axisymmetric squeeze flow of the non-Newtonian shear thinning material between finite disks is studied numerically. The fluid between disks is assumed to follow the Carreau-Bird model. Two disks approach each other at a constant velocity while no-slip boundary condition is assumed. The time dependent simulation shows the effect of fluid nonlinearity, flow parameters and geometric aspect ratio on the flow dynamic and evolution of squeeze force. Also, some physical phenomena are shown and are explained at the edge of the disks and out of them. The conservation and momentum equations containing inertia effects are solved using moving mesh scheme and finite volume method. The SIMPLE algorithm is used to solve the pressure-velocity coupling.
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Shafahi, M., Ashrafi, N. Numerical investigation of a non-Newtonian fluid squeezed between two parallel disks. Korea-Aust. Rheol. J. 32, 89–97 (2020). https://doi.org/10.1007/s13367-020-0002-9
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DOI: https://doi.org/10.1007/s13367-020-0002-9