“Stefan number”的意思、由来-开放百科全书

词条

Stefan number

释义

Notes

The Stefan number^[1] (St or Ste) is defined as the ratio of sensible heat to latent heat. It is given by the formula

where

c_p is the specific heat,
- c_p is the specific heat of solid phase in the freezing process while c_p is the specific heat of liquid phase in the melting process.
∆T is the temperature difference between phases,
L is the latent heat of melting.

It is a dimensionless parameter that is useful in analyzing a Stefan problem. The parameter was developed from Josef Stefan's calculations of the rate of phase change of water into ice on the polar ice caps.

Notes

1. ^{{IPAc-en|ˈ|s|t|ɛ|f|æ|n}}

1 : Dimensionless numbers of thermodynamics

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