changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Jan 01, 2019
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s_\alpha = \frac{V_\alpha}{V_\phi}
\sum_\alpha V_\alpha = V_\phi
\sum_\alpha s_\alpha = 1
In most popular case of a 3-phase fluid model this will be:
s_w + s_o + s_g = 1