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1. Overview of the effect of pressure on fluid viscosity
Figure
1
shows the viscosity of water along isobars as a function of temperature. The critical coordinates for water are T
c
= 647.14 K and P
c
= 22.064 MPa. Pressure ranges from 0.1 MPa to 1,000 MPa, and temperature from 273.15 to 1,300 K. In some ranges T > 1,000 K (or more generally for all fluids: T
r
> 1.5 with T
r
reduced temperature,
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Overview of the effect of pressure on fluid viscosity
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