Freestream
Encyclopedia
The freestream is the air far upstream of an aerodynamic
body, that is, before the body has a chance to deflect, slow down or compress the air. Freestream conditions are usually denoted with a
symbol, e.g. 
, meaning the freestream velocity
Aerodynamics
Aerodynamics is a branch of dynamics concerned with studying the motion of air, particularly when it interacts with a moving object. Aerodynamics is a subfield of fluid dynamics and gas dynamics, with much theory shared between them. Aerodynamics is often used synonymously with gas dynamics, with...
body, that is, before the body has a chance to deflect, slow down or compress the air. Freestream conditions are usually denoted with a
symbol, e.g. , meaning the freestream velocity