Equation continuity

Reference data et engineering information about equation continuity pour fluid mechanics applications.

equationcontinuityCalculatrice

Overview

The continuity equation expresses conservation of mass in fluid flow. For incompressible flow, the product of cross-sectional area and velocity is constant along a streamtube.

Variables

Symbol	Description	Unit
$A$	Cross-sectional area	m²
$v$	Flow velocity	m/s
$Q$	Volume flow rate	m³/s
$\dot{m}$	Mass flow rate	kg/s

Formula

$A_1 v_1 = A_2 v_2$

Calculator

Equation Continuity Calculator

Diameter at Section 1(mm)

Velocity at Section 1(m/s)

Diameter at Section 2(mm)

Notes

Results are approximate and should be verified for critical applications
Input values should be within reasonable engineering ranges

References

Original Source

Source: engineeringtoolbox.com