Figure 4
From: Instantaneous 4D micro-particle image velocimetry (µPIV) via multifocal microscopy (MUM)
3D maps of the absolute values of the shear stress among different planes generated by the fluid of 1 µm beads in dextran flowing around the used fixed HeLa cell. The fluid flows from right to left along the x axis. The images in (a) and (c) show the side view, while those in (b) and (d) the bottom view. Sxy is shown in (a) and (b) Sxz in (c) and (d).
