Hydraulic Radius Calculator

Hydraulic Radius Calculator calculator can be used to calculate the hydraulic radius of a channel, which is an important parameter in fluid mechanics and hydraulics. The hydraulic radius is defined as the cross-sectional area of flow divided by the wetted perimeter.

Input Parameters

Calculation Results

Calculation Formula

Hydraulic Radius (R) = A / P

Where:
A = Cross-sectional Area of flow (m²)
P = Wetted Perimeter (m)
R = Hydraulic Radius (m)

Hydraulic Radius Calculator Calculator Usage Guide

Learn how to use the Hydraulic Radius Calculator calculator and its working principles

What is Hydraulic Radius?

The hydraulic radius (R) is a measure of the efficiency of flow in a channel. It is defined as the cross-sectional area of flow (A) divided by the wetted perimeter (P). A larger hydraulic radius indicates a more efficient flow, as it means more water can flow for a given perimeter.

How to Use the Calculator

  1. Enter the cross-sectional area (A) of the channel in square meters (m²).
  2. Enter the wetted perimeter (P) of the channel in meters (m).
  3. Click the "Calculate" button to compute the hydraulic radius.
  4. The result will be displayed in meters (m).

Applications

The hydraulic radius is used in various hydraulic engineering applications, such as:

  • Designing channels and culverts
  • Calculating flow rates in open channels
  • Understanding water flow efficiency

Example

For example, if a channel has a cross-sectional area of 10 m² and a wetted perimeter of 5 m, the hydraulic radius would be:

R = 10 m² / 5 m = 2 m