captainpaddy
There is no "centrifuging" of air in a turbine engine. Unless you consider free turbine engines which generally use a centrifugal compressor, but then these have no bypass! Centrifuging in a bypass jet engine just does not occur!
of course you're right, but what was being discussed was the centrifuging of particles heavier than air like rain, hail, dust, volcanic ash. The engine manufacturers of these bypass engines go to great lengths to shield the core entrance from most particles heavier than air. Particles heavier than air find it more difficult to turn with the air molecules. Hence the fan spinner shapes and the core splitter inlet being partially shielded at a smaller diameter behind the fan inner flow path.