Equatorial oceanic river caused by tides

The setting: A planet with two main landmasses, each one's center located more or less at each pole of the planet. Liquid water ocean in between them, wrapping fully, if not directly (due to the non-symmetrical nature of landmasses on either side), around the equatorial region of the planet. The planet has a moon (EDIT) or co-orbital planet that is of appropriate size and distance to exert a significant tidal pull on the ocean, and the ocean is of adequate depth and water volume to show tidal effects.

Is there any variation of the details (oceans bigger or smaller, moon closer or farther, etc) of this generally vague setup that allows for tidal forces to get the ocean moving in a river-like flow around the equatorial area of the planet? (as opposed to some misunderstanding I have of Tidal forces making this entirely implausible)

EDIT To provide some background of where I got the idea for this question: I've heard about tides in certain places on Earth being exaggerated due to resonance and oscillation matching the shapes and sizes of bordering land. From there, it seemed to me that if the tide frequency (orbital frequency of the moon) also happened to resonate with the size/shape of the ring/ocean it would flow something like water in a cup when you swirl it around, just on a planetary scale. (also, I understand that this would likely drag the two bodies in to tidal lock, eventually, so the exact time-scales need not be too long, just "long enough" for a story)

posted almost 5 years ago

Dalila‭

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