Dimensionless transpiration condition

The dimensionless form of the transpiration boundary condition (2.23) is:

$$\mbox{\boldmath$\hat{n}$}\cdot\mathbf{u}= \frac{1-\mathrm{e... ...ht]} \mbox{\boldmath$\hat{n}$}\cdot\mbox{\boldmath$\nabla$}m.$$ (2.59)

It may be seen that the mass transfer rate factor, $\varPhi$, enters into both the transpiration boundary condition (2.59) and the variable mixture specific heat and interdiffusion parts of the energy equation (2.55). The relationship between these effects will become evident once solutions of the above system are presented in chapter 4.