,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,TF-01
Selected stageCutaway casing and hardwareCool bypass / warm core airflow cuesIllustrative turbofan model — not an engineering simulator. Cool air splits around the core; the warm cue begins only after the combustor.
Throttle target42%
Fan spool54% norm
Core spool46% norm
Bypass flow54 u
Core flow46 u
Airflow
Select stage
Overview · fan to separate exhaust paths

All stages remain visible: the fan splits the inlet stream, the core continues through compressor, combustor and turbines, and the surrounding bypass passage carries cooler air aft.

Reference: NASA Glenn educational turbofan overview and gas-turbine engine sequence. Conceptual stage relationships only: grc.nasa.gov/WWW/k-12/airplane/aturbf.html. All displayed percentages are normalized educational state; airflow values are explicitly model units.