changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Nov 27, 2019
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\mbox{if} \, z < z_f \; \RightarrowLongrightarrow \;T_b(t,z) = T_f + (T_G(z) - T_f) \cdot \mbox{erf} \left( \frac{z_f-z}{\sqrt{4at}} \right)
\mbox{if} \, z_f \leq z \leq z_f + h_f \; \Longrightarrow \Rightarrow; T_b(t,z) = T_f
\mbox{if} \, z > z_f + h_f \Rightarrow; \Longrightarrow \; T_b(t,z) = T_f + (T_G(z) - T_f) \cdot \mbox{erf} \left( \frac{z-z_f-h_f}{\sqrt{4at}} \right)