Characteristic Length

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

Characteristic Length

Characteristic length ( \(l\) ) is an important dimension that defines the scale of a physical system. This dimension will vary depending on the system requirements, height of an obstacle, length of the cylinder, etc.

Characteristic Length Formula

\(\gamma = \frac { V }   { A }\)          \( characteristic \; length  \;=\;   \frac { volume \; of \; the \; body }   { surface \; area \; of \; the \; body }\)

Where:

\( l \) = characteristic length

\(V\) = volume of the body

\(A\) = surface area of the body