On the global existence for a regularized model of viscoelastic non-Newtonian fluid

We study the generalized Oldroyd model with viscosity depending on the shear stress behaving like $μ(\mathbf{D}) \sim |\mathbf{D}|^{p-2}$ ($p>\frac 65$) regularized by a nonlinear stress diffusion. Using the Lipschitz truncation method we are able to prove global existence of weak solution to the corresponding system of partial differential equations.

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