Driving Pressure Calculator

Driving Pressure Calculator calculator can be used to calculate the driving pressure required for fluid flow through a pipe.

Input Parameters

Calculation Results

Calculation Formula

P = (f * L * Q^2) / (12.1 * D^5 * μ)

Where:
P = Driving Pressure (Pa)
f = Friction Factor (dimensionless)
L = Pipe Length (m)
Q = Flow Rate (L/min)
D = Pipe Diameter (mm)
μ = Fluid Viscosity (Pa·s)

Result

Driving Pressure Calculator Calculator Usage Guide

Learn how to use the Driving Pressure Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the flow rate (Q) in liters per minute (L/min).
  2. Enter the pipe diameter (D) in millimeters (mm).
  3. Enter the fluid viscosity (μ) in Pascal-seconds (Pa·s).
  4. Enter the pipe length (L) in meters (m).
  5. Enter the friction factor (f) as a dimensionless value. A typical value for turbulent flow is around 0.02.
  6. Click the "Calculate" button to compute the driving pressure.
  7. The result will be displayed in Pascals (Pa).

Working Principle

The Driving Pressure Calculator uses the Darcy-Weisbach equation to calculate the pressure drop in a pipe due to friction. The equation is:

P = (f * L * Q^2) / (12.1 * D^5 * μ)

Where:

  • P = Driving Pressure (Pa)
  • f = Friction Factor (dimensionless)
  • L = Pipe Length (m)
  • Q = Flow Rate (L/min)
  • D = Pipe Diameter (mm)
  • μ = Fluid Viscosity (Pa·s)

This equation is commonly used in fluid dynamics to determine the pressure drop in pipes due to friction, which is essential for designing fluid transport systems such as pipelines, hydraulic systems, and ventilation systems.