Stefan number

Stefan number

The Stefan number, St or Ste, is defined as the ratio of sensible heat to latent heat. It is given by the formula

Ste = frac{C_pDelta T}{L}

where C_p is the specific heat, Delta T is the temperature difference between phases, and 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.


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