An investigation of the compressibility effect
in capillary rheometer was performed using the 2-domain Tait equation [18, 19]:
Model Series B: Fluid Compressibility Effect
Another parameter that affects the oil production in an undersaturated oil reservoir is the fluid compressibility.
The prewhirl reduces the compressibility effect
at convex side of the eye to avoid the formation of shock waves and the consequent losses (Fig.
Under the similar experimental conditions to those in this work, the compressibility effect
in the rheological property of the PS melt was verified to be neglected via the PVT test .
Finally, the melt compressibility effect
was taken into account by introducing the temperature coefficient of density [[alpha].sub.p]] and pressure coefficient of density [[beta].sub.p]] (6).
To investigate the compressibility effect
on shrinkage, the anisotropic shrinkage as a function of packing time were calculated with and without inclusion of the compressibility effect
1 along with the estimated apparent shear rate with compressibility effects
. To analyze the effect of compressibility, the specific volume of the polymer melt in the rheometer barrel was modeled using the Tait equation , wherein changes in the specific volume as a function of pressure can cause the shear rate in the capillary to vary significantly from the apparent values.
Researchers in  presents two calculation models at subsonic and supersonic regime, finding that for subsonic and supersonic regime, the compressibility effects
of the primary air are not correctly replicated and the wall effects are not characterized in the generation of the boundary layer.
Steady state, turbulent flow conditions are assumed and compressibility effects
et al Compressibility Effects
in Two- Phase Flow" Journal of Applied Physics Vol.