As nouns the difference between airflow and airstream
is that airflow is any flow of air, especially the motion of air around a moving aircraft or aerofoil while airstream is a flow of air.
airflow
English
Noun
(
en noun)
any flow of air, especially the motion of air around a moving aircraft or aerofoil
airstream
English
Alternative forms
* air stream
* air-stream
Noun
(
en noun)
A flow of air.
The flow of air around an object.
- Maintaining a clean airstream around the car is important for good fuel economy.