This special section from Physics of Fluids features award-winning photographs and videos chosen from among numerous entries to the Annual Gallery of Fluid Motion exhibit, held at the annual meeting of the American Physical Society, Division of Fluid Dynamics.

These photographs and videos illustrate both experimental and numerical investigations of a wide variety of flow phenomena. Judged by a distinguished international panel of referees, winning entries were selected based upon criteria of scientific merit, originality, and artistry/aesthetic appeal.