Figure 9.

The time dependence [92] of the effective viscosity $\eta$ after a stepwise decrease of the shear rate $\dot{\gamma }$ from 16 s⁻¹ to 1.6 s⁻¹ at t = 0. Curve 1—the dimensionless magnetic field $\kappa =3$ Curve 2—$\kappa =1$. Parameters of the system: the hydrodynamic diameter (with the surface layers) of the particles was 16 nm, the volume concentration of the particles was $\phi =$ 0.015, the dipolar coupling was $\lambda$ = 2.75, the viscosity of the carrier liquid ${\eta }_0=0.13$ Pa∙s. Published with the permission of the American Physical Society (license RNP/20/AUG/029407).