Define And State The Physical Interpretation Of The Biot Number?

1.	Define And State The Physical Interpretation Of The Biot Number?
Answer» The Biot NUMBER is given by: Bi = hL/k Where h = convective HEAT transfer coefficient, k = thermal conductivity L = characteristic length. It is a ratio of the temperature drop in the solid material and the temperature drop the solid and the fluid. So when the Bi &LT;<1 , most of the temperature drop is in the fluid and the solid may be considered isothermal. The Biot number is given by: Bi = hL/k Where h = convective heat transfer coefficient, k = thermal conductivity L = characteristic length. It is a ratio of the temperature drop in the solid material and the temperature drop the solid and the fluid. So when the Bi <<1 , most of the temperature drop is in the fluid and the solid may be considered isothermal.

Answer»

The Biot NUMBER is given by:

Bi = hL/k

Where

h = convective HEAT transfer coefficient,

k = thermal conductivity

L = characteristic length.

It is a ratio of the temperature drop in the solid material and the temperature drop the solid and the fluid. So when the Bi &LT;<1 , most of the temperature drop is in the fluid and the solid may be considered isothermal.

The Biot number is given by:

Bi = hL/k

Where

h = convective heat transfer coefficient,

k = thermal conductivity

L = characteristic length.

It is a ratio of the temperature drop in the solid material and the temperature drop the solid and the fluid. So when the Bi <<1 , most of the temperature drop is in the fluid and the solid may be considered isothermal.

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