(1) | \Psi =2 \, \int_0^p \frac{p \, dp}{\mu(p) \, Z(p)} |
It is widely used in high compressible fluid pressure diffusion models.
The name "Pseudo Pressure" is misnomer as Pseudo Pressure is not actually a pressure in terms of physical property and has a different dimension.
See also
Physics / Mechanics / Continuum mechanics / Fluid Mechanics / Fluid Dynamics / Pressure Diffusion / Pressure Diffusion @model
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing / Pressure Testing