Shear thinning of confined liquids is studied in the framework of the time dependent Ginzburg-Landau equation coupled to a shear-induced velocity field. Scaling relationship between the effective viscosity and the shear rate is analytically derived with an exponent which depends on the velocity profile within the liquid and on the boundary conditions. The velocity profile is derived in the limit of low shear rate. Thinning is observed for shear rates faster than typical liquid relaxation rates. Relevance to existing systems and predictions amenable to new experiments are discussed.
|Number of pages||12|
|Journal||Materials Research Society Symposium - Proceedings|
|State||Published - 1995|
|Event||Proceedings of the 1994 MRS Fall Meeting - Boston, MA, USA|
Duration: 28 Nov 1994 → 2 Dec 1994