EngiRef / Civil Engineering Formula
Hydraulic Radius
Hydraulic Radius: Ratio of flow area to wetted perimeter. A Hydraulics formula in civil engineering. Variables R, A and P, each with SI and imperial units.
Hydraulics
Specification
- Name
- Hydraulic Radius
- Discipline
- civil
- Category
- Hydraulics
- LaTeX
- R = \frac{A}{P}
- Description
- Ratio of flow area to wetted perimeter
- Can solve for
- R, A, P
- Tags
- hydraulic, radius, channel, perimeter
Variables
| Symbol | Name | Unit | Si Unit | Imperial Unit |
|---|---|---|---|---|
| R | Hydraulic Radius | m | m | ft |
| A | Flow Area | m² | m² | ft² |
| P | Wetted Perimeter | m | m | ft |
Common questions
- What is the Hydraulic Radius formula?
- Ratio of flow area to wetted perimeter. It sits under Hydraulics, Civil engineering in the EngiRef reference.
- What do the symbols in the Hydraulic Radius formula mean?
- In Hydraulic Radius, R is hydraulic radius in m; A is flow area in m²; P is wetted perimeter in m.