changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Apr 25, 2021
\epsilon_f(T) = 0.25 \cdot \left[ 1+ 9 \cdot P_f + 3 \cdot \sqrt{ 9 P_f^2 + 2 P_f +1} \right]
P_f(T) = s_w \cdot P_w + s_o \cdot P_o + s_g \cdot P_g
P_w(T) = \frac{(\epsilon_w-1)(2\epsilon_w+1)}{9 \, \epsilon_w}
\epsilon_w(T) = 87.74 - 0.40008 \cdot T + 9.398 \cdot 10^{-4} \cdot T^2 - 1.41 \cdot 10^{-6} \cdot T^3
P_o(T) = \frac{\epsilon_o-1}{\epsilon_o+2}
P_g(T) = = \frac{\epsilon_g-1}{\epsilon_g+2}
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