EngiRef / Fluids Engineering Formula
Froude Number
Froude Number: Ratio of inertial to gravitational forces. A Fluid Dynamics formula in fluids engineering. Variables Fr, v, g and L, each with SI and imperial…
Fluid Dynamics
Specification
- Name
- Froude Number
- Discipline
- fluids
- Category
- Fluid Dynamics
- LaTeX
- Fr = \frac{v}{\sqrt{gL}}
- Description
- Ratio of inertial to gravitational forces
- Conditions
- Important for open channel and ship hydrodynamics
- Can solve for
- Fr, v, L
- Tags
- froude, number, wave, gravity, open, channel
Variables
| Symbol | Name | Unit | Si Unit | Imperial Unit |
|---|---|---|---|---|
| Fr | Froude Number | - | - | - |
| v | Velocity | m/s | m/s | ft/s |
| g | Gravity | m/s² | m/s² | - |
| L | Characteristic Length | m | m | ft |
Common questions
- What is the Froude Number formula?
- Ratio of inertial to gravitational forces. It sits under Fluid Dynamics, Fluids engineering in the EngiRef reference.
- What do the symbols in the Froude Number formula mean?
- In Froude Number, Fr is froude number; v is velocity in m/s; g is gravity in m/s²; L is characteristic length in m.
- When does the Froude Number formula apply?
- Froude Number holds under this condition: Important for open channel and ship hydrodynamics.