Fig. 5.

(Colour online) a The limiting velocity field (m/s) on the bottom edge ($z=0$); and b, c front and left views of the 3D acoustic streaming fields, where the colours at the bottom edge in (b, c) show the acoustic pressure magnitudes (red for maximum and blue for zero). To give a clear presentation of the 3D acoustic streaming flows, only those above one acoustic pressure antinode are shown. Arrows in (b, c) show the streaming directions