Siphon Flow Rate Calculator

This calculator can be used to determine the flow rate of a siphon based on the height difference, total length, and coefficient of friction.

Input Parameters

Calculation Results

Calculation Formula

Q = (π * g * h^5) / (128 * λ * L)

Where:
Q = Flow Rate (m³/s)
g = Acceleration due to gravity (9.81 m/s²)
h = Height Difference (m)
λ = Coefficient of Friction
L = Total Length of Siphon (m)

Flow Rate (Q) (m³/s)

Siphon Flow Rate Calculator Usage Guide

Learn how to use the Siphon Flow Rate Calculator and its working principles

How to Use the Calculator

  1. Enter the height difference (h) between the inlet and outlet of the siphon in meters.
  2. Enter the coefficient of friction (λ) for the siphon material.
  3. Enter the total length (L) of the siphon in meters.
  4. Click the "Calculate" button to compute the flow rate.
  5. The flow rate (Q) will be displayed in cubic meters per second (m³/s).

Understanding the Formula

The flow rate of a siphon is determined by the height difference between the inlet and outlet, the coefficient of friction, and the total length of the siphon. The formula used is:

Q = (π * g * h^5) / (128 * λ * L)

Where:

  • Q = Flow Rate (m³/s)
  • g = Acceleration due to gravity (9.81 m/s²)
  • h = Height Difference (m)
  • λ = Coefficient of Friction
  • L = Total Length of Siphon (m)

Principle Explanations

A siphon is a tube that allows liquid to flow over an intermediate high point without the use of pumps, by the principle of fluid dynamics. The flow rate depends on the height difference, which provides the driving force, and the friction losses along the length of the siphon.