thumb|300px|An object (black) encounters a liquid (blue) at high speed. The fluid pressure behind the object is lowered below the vapour pressure of the liquid, forming a bubble of vapour (a cavity) that encompasses the object and reduces drag.
thumb|300px|An object (black) encounters a liquid (blue) at high speed. The fluid pressure behind the object is lowered below the vapour pressure of the liquid, forming a bubble of vapour (a cavity) that encompasses the object and reduces drag.
In hydrodynamic engineering, supercavitation is the artificial generation of a cavitation bubble to reduce skin friction drag on a submerged object and enable high-speed travel. Applications include torpedoes and propellers, but in theory, the technique could be extended to an entire underwater vessel.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).