Figure 2
From: Soft channel formation and symmetry breaking in exotic active emulsions
Activity induces symmetry breaking. Panels (a)–(f) show different stages of the development of the asymmetry for \(\zeta =-0.002\) and \({{\dot{\gamma }}}=6.2\times 10^{-4}\), from the pearlification of the lamellar pattern (a), isotropic channel formation (b), shrinking of one of the two active layers (c) to the fully developed asymmetric configuration (d). Panel (e) shows the evolution of the \(v_y\) profiles averaged in the channel direction y. Panel (f) shows the streamlines of the reduced velocity field \({\tilde{{\mathbf {v}}}}={\mathbf {v}}-{\mathbf {V}}\), where \({\mathbf {V}}=(-v_w+{\dot{\gamma }}z){\mathbf {j}}\) is the shear flow. Panel (g) shows the advective flux of the concentration field, computed as the amount of active material that flows across the mid-line of the simulation box in a lapse of \(10^4\) iterations (\(\Phi = \int \text {d}t \text {d}y \phi v_z\)). Panel (h) shows the temporal evolution of the concentration profile, from the lamellar (bordeaux), to the final asymmetric (blue) configuration.
