The Coanda effect was named after the Russian aerodynamics pioneer Henry Coanda. The effect is the tendency of of a fluid jet to be attracted to a nearby surface.

He was born in Bucharest, Romania

he didn't. He just lied about it years after othewrs invented the jet. I, Sorin Ligureanu am ashamed that coanda was such a worthless liar.

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The Coanda effect occurs due to the presence of a curved surface immersed in a flowing fluid when the surface curves away from the flow. The flow 1) causes a lowered pressure at the surface and 2) entrains fluid to flow towards the surface. The effect can be seen as smoke streams in a wind tunnel follow the shape of, e.g. a streamlined automobile.

Another example is a water flow adhering to the back of a spoon. This is caused primarily by the Van der Waals (surface tension) forces between the water and the surface of the spoon.