The phrase 'water current' is correct and usable in written English.
You could use it to describe the flow of water, e.g. "The water current moved slowly against the riverbank".
In ascidians and thaliaceans the beating action of pharyngeal cilia creates a water current.
The water current passes into the atrium and exits through the atrial opening.
The beating flagellum creates a water current, causing water to move through the collar.
Bag nets are kept vertically open by a frame and held horizontally stretched by the water current.
A crown of ciliated tentacles creates a water current that draws food particles toward a central mouth.
A rock with an assortment of grain sizes would suggest that it formed in a mudslide or a variable water current.
Solar energy now runs all the electricity in the house, including the central air-conditioning and the aboveground pool's water current.
Your statement that "The Gulf Stream is driven both by the rotation of the Earth and by a deep-water current called the Thermohaline Circulation" is false.
Peru Current, also called Humboldt Current, cold-water current of the southeast Pacific Ocean, with a width of about 900 km (550 mi).
Water-Current Turbines (WCTs) are non-polluting electricity generation plants that harness the kinetic energy of natural water courses, using several kinds of rotors.
Placing plants under the filter can help to diminish the water-current.
