Poiseuille's Equation Calculator

Enter value and click on calculate. Result will be displayed.

v = ( π x p x R4 ) / ( 8 x n x L )      π = 3.1415
V = Volume per Second
P = Pressure Difference Between The Two Ends
R = Internal Radius of the Tube
n = Absolute Viscosity
L = Total Length of the Tube

Enter your values:

Pressure Difference Between
The Two Ends:
mmHg
Internal Radius of the Tube:
Meters
Absolute Viscosity:
Centi-Poisseuille's
Total Length of the Tube:
Meters

Result:

Volume per Second:
Meters/Second

What is a Poiseuille’s Equation Calculator?

A Poiseuille’s Equation Calculator is a tool used to determine the volumetric flow rate of a fluid through a cylindrical pipe under laminar flow conditions. It is based on Hagen-Poiseuille’s Law, which describes how viscosity, pipe dimensions, and pressure differences affect fluid flow.


Why Use a Poiseuille’s Equation Calculator?

A Poiseuille’s Equation Calculator is important for:

  • Medical Applications – Used in blood flow analysis and IV drip rate calculations.
  • Hydraulics & Fluid Mechanics – Helps engineers design pipelines and microfluidic systems.
  • Industrial Processes – Used in chemical processing and lubrication system design.
  • Research & Development – Assists in studying fluid behavior in controlled environments.

How to Use a Poiseuille’s Equation Calculator?

  1. Enter Pipe Radius – Input the internal radius of the pipe.
  2. Specify Pressure Difference – Define the pressure drop along the pipe.
  3. Provide Fluid Viscosity – Enter the dynamic viscosity of the fluid.
  4. Input Pipe Length – Specify how long the fluid travels through the pipe.
  5. Calculate Flow Rate – The tool applies Poiseuille’s equation and provides the result.
  6. Analyze Results – Use the output to optimize pipe design or medical fluid flow.

When to Use a Poiseuille’s Equation Calculator?

  • When designing microfluidic systems, such as lab-on-a-chip devices.
  • In medical fields to estimate blood flow in capillaries or IV tubes.
  • In engineering to determine fluid flow in small pipes under low-speed conditions.
  • When analyzing lubrication systems, such as oil flow in machine bearings.
  • Anytime an engineer or scientist needs to predict laminar flow behavior in cylindrical tubes.
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About This Calculator
Created at  2025/1/13
Updated :
2025/03/21
Views :
199719
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