The Biot number (Bi) is the ratio of the thermal resistances inside of a body and at the surface of a body. The Biot number is defined as:

Characteristic length can be estimated as:

The Biot number (Bi) is the ratio of the thermal resistances inside of a body and at the surface of a body. The Biot number is defined as:

Characteristic length can be estimated as:

Categories: B