1. What is Pipe Flow Calculation?

Definition: This calculator determines the volumetric flow rate of a fluid through a circular pipe based on the pipe's radius and the fluid's velocity.

Purpose: It helps engineers, plumbers, and technicians design and analyze fluid systems in various applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Volumetric flow rate (m³/s)
• \( r \) — Pipe radius (m)
• \( V \) — Flow velocity (m/s)
• \( \pi \) — Mathematical constant Pi (~3.14159)

Explanation: The formula calculates the cross-sectional area of the pipe (πr²) and multiplies it by the fluid velocity to determine volume per second.

3. Importance of Pipe Flow Calculation

Details: Accurate flow rate calculations are essential for proper system design, ensuring adequate fluid delivery, and maintaining system efficiency.

4. Using the Calculator

Tips: Enter the pipe radius in meters and flow velocity in meters per second. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What if I know diameter instead of radius?
A: Simply divide the diameter by 2 to get the radius before entering the value.

Q2: What's a typical flow velocity for water in pipes?
A: For residential plumbing, 0.5-2 m/s is common. Higher velocities may cause noise and erosion.

Q3: Can I use this for non-circular pipes?
A: No, this formula is specifically for circular pipes. Different formulas exist for other shapes.

Q4: How does viscosity affect the calculation?
A: Viscosity affects velocity but not this direct calculation. The formula assumes you already know the actual velocity.

Q5: What units should I use?
A: The calculator uses meters for radius and m/s for velocity, yielding m³/s. You can convert inputs/outputs as needed.