EngiRef / Fluids Engineering Formula
Continuity Equation
Continuity Equation: Conservation of mass in fluid flow. A Fluid Dynamics formula in fluids engineering. Variables A₁, v₁, A₂ and v₂, each with SI and imperial…
Fluid Dynamics
Specification
- Name
- Continuity Equation
- Discipline
- fluids
- Category
- Fluid Dynamics
- LaTeX
- A_1 v_1 = A_2 v_2
- Description
- Conservation of mass in fluid flow
- Conditions
- Incompressible, steady flow
- Can solve for
- A₁, v₁, A₂, v₂
- Tags
- continuity, mass, conservation, flow
Variables
| Symbol | Name | Unit | Si Unit | Imperial Unit |
|---|---|---|---|---|
| A₁ | Area 1 | m² | m² | ft² |
| v₁ | Velocity 1 | m/s | m/s | ft/s |
| A₂ | Area 2 | m² | m² | ft² |
| v₂ | Velocity 2 | m/s | m/s | ft/s |
Common questions
- What is the Continuity Equation formula?
- Conservation of mass in fluid flow. It sits under Fluid Dynamics, Fluids engineering in the EngiRef reference.
- What do the symbols in the Continuity Equation formula mean?
- In Continuity Equation, A₁ is area 1 in m²; v₁ is velocity 1 in m/s; A₂ is area 2 in m²; v₂ is velocity 2 in m/s.
- When does the Continuity Equation formula apply?
- Continuity Equation holds under this condition: Incompressible, steady flow.