Summary: Equilibrium Fluxes
To calculate fluxes of a molecular
property Q to the surface element
dS we will use the coordinate
system as shown. Here
is the outward normal to the
surface
is the freestream velocity
x-axis is anti-parallel to
y-axis is chosen so that x-y plane
contains
is the angle b/w and .
In this coordinate system:
es
v
es v
v
V ,x=V cos
V , y=V sin
 In this system of coordinates, the flux of a molecular

Source: Alexeenko, Alina - School of Aeronautics and Astronautics, Purdue University

Collections: Engineering