The Coanda effect is the propensity for a flow to
attach to a surface, like how water flowing over
a rock clings to it even if the the rock face goes beyond
the vertical! It can be improved by moving the
surface instead, like a spinning football, which can
deviate from a straight line to an amazing extent
due to this helpful effect!
I think it also was called the Magnus principle, which
was used in some ships with Flettner rotors :-)! Which see!
The name of a physical principle is almost always nationalistic,
we for instance have no Centigrade, we have Celsius, after the Swede
who invented the scale! In the Anglo-Saxon world the Swede was erased!
Tord,
Sweden
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Tord S. Eriksson, Ovralidsg.25:5, S-422 47 Hisings Backa, Sweden
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