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@wikipedia
Fluid Compressibility of with density
\rho_f and molar volume
V_{mf}:
(1) |
c_f = \frac{1}{\rho_f} \frac{\partial \rho_f}{\partial p} = -\frac{1}{V_{mf}} \frac{\partial V_{mf}}{\partial p} |
The multi-phase compressibility is a linear sum of compressibilities of its phases.
Approximations
Incompressible fluid
Slightly compressible fluid
Ideal gas
Wide range compressibility proxy model
(5) |
c_f(p) = \frac{c_0}{1+c_0 \cdot p} |
See also
[Compressibility] [Multi-phase compressibility]