Diffusion in a moving film

Input(s)

H: Initial Height of Gas Column (cm)

C: Concentration (g/cc)(\mathrm{g} / \mathrm{cc})

t\mathrm{t}: Time (s)(\mathrm{s})

Output(s)

h(t)\mathrm{h}(\mathrm{t}): Height of Gas Interface (cm)(\mathrm{cm})

Formula(s)

h(t)=H((1+(CtH2)0.5)1)\mathrm{h}(\mathrm{t})=\mathrm{H} *\left(\left(1+\left(\frac{\mathrm{Ct}}{\mathrm{H}^{2}}\right)^{0.5}\right)-1\right)

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 18, Page: 549.


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