Equations
Continuity equation
Fluids · id continuity_equation
A_1 v_1 = A_2 v_2
| Symbol | Quantity | Unit | Meaning | Usual range |
|---|---|---|---|---|
A1 | area 1 | m^2 | Cross-sectional area at the first point | 1e-09 to 1e+06 |
v1 | flow speed 1 | m/s | Flow speed at the first point | 0 to 1000 |
A2 | area 2 | m^2 | Cross-sectional area at the second point | 1e-09 to 1e+06 |
v2 | flow speed 2 | m/s | Flow speed at the second point | 0 to 1000 |
Assumptions
- Incompressible fluid
- Steady flow
Valid when
- No extra conditions.
Found by
Questions with these words retrieve this equation: continuity, pipe, nozzle, hose, flow speed, narrow, cross-section.
Source
OpenStax University Physics Volume 1, Chapter 14 (reference; entry written by the project). License: MIT. Entry confidence: 0.99.