1. What Is Volumetric Flow Rate?

Volumetric flow rate measures the volume of fluid that passes through a given cross-sectional area per unit time. In circular pipes, it's calculated using the pipe's cross-sectional area and the fluid velocity.

2. How Does The Calculator Work?

The calculator uses the volumetric flow rate formula:

Where:

• \( Q \) — Volumetric flow rate (m³/s)
• \( D \) — Pipe diameter (m)
• \( v \) — Fluid velocity (m/s)
• \( \pi \) — Mathematical constant (approximately 3.14159)

Explanation: The formula calculates the cross-sectional area of the circular pipe and multiplies it by the velocity to determine the volume of fluid flowing per second.

3. Importance Of Flow Rate Calculation

Details: Accurate flow rate calculation is essential for designing piping systems, determining pump sizes, optimizing HVAC systems, and ensuring proper fluid transport in industrial applications.

4. Using The Calculator

Tips: Enter pipe diameter in meters and fluid velocity in meters per second. Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for diameter and velocity?
A: Diameter should be in meters (m) and velocity in meters per second (m/s) for the result to be in cubic meters per second (m³/s).

Q2: Can I use this calculator for liquids other than air?
A: Yes, this formula applies to any incompressible fluid flowing through a circular pipe.

Q3: What is the typical velocity range for air in pipes?
A: For HVAC applications, air velocity typically ranges from 2-10 m/s, depending on the system design and noise considerations.

Q4: How does pipe diameter affect flow rate?
A: Flow rate increases with the square of the diameter, so doubling the diameter quadruples the flow rate at the same velocity.

Q5: Is this formula accurate for compressible fluids?
A: This formula assumes incompressible flow. For highly compressible fluids like air at high velocities, additional factors may need consideration.