Contrib simpleScalarFoam

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1 Short description

A steady-state incompressible laminar flow solver with scalar transport and mass transfer coefficient and Sherwood number calculation.

Do the following steps:

The solver is based on simpleFoam, with the transport of a scalar T having a mass diffusion coefficient $D_T$ :

$\nabla \cdot \left(\varphi T\right) - \nabla^2 \left( D_T \cdot T \right) = 0$

The mass transfer coefficient is determined at each wall by:

$k_c=-\frac{D_T}{T_b-T_{wall}} \frac{\partial T}{\partial y}|_{y=0}$

where $T_b$ is the bulk value of T, $T_{wall}$ is the value of T at the wall and y is the direction normal to the wall.

The Sherwood number is then determined by:

$Sh=\frac{k_c d}{D_T}$

where d is the characteristic dimension.

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