On the behavior in time of solutions to motion of Non-Newtonian fluids
Tóm tắt
We study the behavior on time of weak solutions to the non-stationary motion of an incompressible fluid with shear rate dependent viscosity in bounded domains when the initial velocity
$${u}_0 {\in } {L}^2$$
. Our estimates show the different behavior of the solution as the growth condition of the stress tensor varies. In the “dilatant” or “shear thickening” case we prove that the decay rate does not depend on
$$u_0$$
, then our estimates also apply for irregular initial velocity.
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