# Reduced Specific Volume

on . Posted in Fluid Dynamics

Reduced specific volume, abbreviated as $$\upsilon_r$$ (Greek symbol upsilon), also called pseudo-reduced specific volume, of a fluid is ratio of the specific volume of a substance's critical pressure and temperature.

## Reduced Specific Volume formula

$$\large{ \upsilon_r = \frac {\upsilon \; p_c}{R \; T_c} }$$
Symbol English Metric
$$\large{ \upsilon_r }$$  (Greek symbol upsilon) = reduced specific volume $$\large{\frac{ft^3}{lbm}}$$ $$\large{\frac{m^3}{kg}}$$
$$\large{ p_c }$$ = critical pressure $$\large{\frac{lbf}{in^2}}$$ $$\large{Pa}$$
$$\large{ T_c }$$ = critical temperature $$\large{ F }$$ $$\large{ K }$$
$$\large{ \upsilon}$$  (Greek symbol upsilon) = specific volume $$\large{\frac{ft^3}{lbm}}$$ $$\large{\frac{m^3}{kg}}$$
$$\large{ R }$$ = universal gas constant $$\large{ \frac{lbf-ft}{lbmol-R} }$$ $$\large{ \frac{J}{kmol-K} }$$

Tags: Volume Equations