downward current
downcurrent

There will, however, be a downward current of air to prevent that.

We sure don't see any reason now to turn around and join the rest of the pack headed downcurrent.

Fronds waved at full extension downcurrent like a woman's long hair in an evening breeze.

Let's go downcurrent, now, across the seawall.

And the larger kelp fronds downcurrent of the outpost stretched directly toward Keel.

In the water Dandy Lass immediately turned left, downcurrent, paddling hard, and two seconds later her nose went up as she acknowledged scent.

She let go of the ventral fin and clung to the hatch latch, streaming downcurrent before she transferred her grip to the trailing edge of the hatch opening.

Measuring the long axis of the flute cast gives the direction of flow, with the scoop-shaped end pointing in the upcurrent direction and the tapered end pointing downcurrent (paleoflow direction).

The villain here is Dusty Muleman, whose casino boat is illegally flushing human waste straight into the harbor, endangering the health of the children who swim downcurrent at a nearby beach and the turtles who lay their eggs there.