Fig. 1.

Definition of geometric parameters of a DLD array and streamlines in a unit cell. (A) Diagram of the DLD array unit cell used in our simulations. Here, $N=10$ and $D_0=190nm\text{,}{D}_x=D_y=400nm$. (B) The 3D diagram of a DLD pillar array. The unit cell is indicated by a blue dotted box and the array periodicity and angle is shown by the red triangle. (C–F) Flow streamlines in the unit cell of a pillar array for different geometries, with decreasing pillar diameters $D_0=240\mathit{\text{,}}200\mathit{\text{,}}160\mathit{\text{,}}120nm$, respectively. In all cases, $N=10\mathit{\text{,}}{D}_x=D_y=400nm$. 100 streamlines are shown, with initial positions uniformly distributed along the inlet HA.