Continuity Equation for Density

Continuity equation is the moving of a quantity through a pipe in a steady flow.  This formula calculates the initial density of the fluid.

 

Continuity Equation for Density formula
\( \rho_1 =  \rho_2 \; A_2 \; v_2 \;/\; A_1 \; v_1  \)
Symbol	English	Metric
\(\ \rho_1 \)  (Greek symbol rho) =  initial cross-section density	\(lbm \;/\; ft^3\)	\(kg \;/\; m^3\)
\( A_2 \) = final area cross-section	\(in^2\)	\(mm^2\)
\( A_1 \) = initial area cross-section	\(in^2\)	\(mm^2\)
\( \rho_2 \)  (Greek symbol rho) =  final cross-section density	\(lbm \;/\; ft^3\)	\(kg \;/\; m^3\)
\( v_2 \) = final cross-section velocity	\(ft \;/\; sec\)	\(m \;/\;s\)
\( v_1 \) = initial cross-section velocity	\(ft \;/\;sec\)	\(m \;/\;s\)