Continuity Equation for Velocity

on . Posted in Fluid Dynamics

continuity equation 1

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

 

Continuity Equation for Velocity formula

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

 

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Tags: Velocity Flow