Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
for different values of the blood vessel diameter 2R and with 
in the case of cylindrical geometry.
The black line in each panel is the solution ϕ0(r), while the red line curve is the exponential 
. The solution ϕ0(r) is always subexponential, however it approaches the exponential as the diameter of the blood vessel increases.
