In contrast, the metal sphere may be large, causing the characteristic length to increase to the point that the Biot number is larger than one.

So, the characteristic length is fixed for a given sail.

Higher winds tend to force small characteristic lengths.

There are three characteristic lengths that a shoe-size system can refer to:

Where is a characteristic length and m is a dimensionless constant.

However, to obtain an average Nusselt number, one must integrate said relation over the entire characteristic length.

For an airfoil, the characteristic length is usually the chord length.

As magnitude of characteristic length decreases brittle nature dominates and vice versa.

In physics, a characteristic length is an important dimension that defines the scale of a physical system.

Adding a characteristic length (L) to both sides gives the ratio: