Mass convection Stanton number

The dimensionless parameter in Eq. 6.107 is the Bodenstein number (Eq. 6.106). The remaining parameter in Eq. 6.108 determines the ratio of effective mass transport to convection, which is defined by the modified (effective) Stanton number (Steff) ... 

Mass transfer and convection modified Stanton number... 

Stanton number (mass transfer) Stn Sh hD Dimensionless mass transfer coefficient Convective mass transfer... 

The correlations for fluid-solid interfaces often show mathematical forms like those for fluid fluid interfaces. The mass transfer coefficient is most often written as a Sherwood number, though occasionally as a Stanton number. The effect of diffusion coefficient is most often expressed as a Schmidt number. The effect of flow is most often expressed as a Reynolds number for forced convection, and as a Grashof number for free convection. 

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