1. What is the Pipe Flow Equation?

The pipe flow equation calculates the volumetric flow rate of a fluid through a circular pipe based on the pipe's radius and the fluid's velocity. This fundamental equation is widely used in fluid dynamics and engineering applications.

2. How Does the Calculator Work?

The calculator uses the pipe flow equation:

Where:

• \( Q \) — Volumetric flow rate (m³/s)
• \( \pi \) — Mathematical constant (~3.14159)
• \( r \) — Pipe radius (meters)
• \( v \) — Fluid velocity (meters/second)

Explanation: The equation calculates the volume of fluid passing through the pipe per unit time by multiplying the pipe's cross-sectional area (πr²) by the fluid velocity.

3. Importance of Flow Rate Calculation

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

4. Using the Calculator

Tips: Enter pipe radius in meters and fluid velocity in meters per second. Both values must be positive numbers. The calculator will compute the volumetric flow rate in cubic meters per second.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for the inputs?
A: The calculator expects radius in meters and velocity in meters per second. Convert other units accordingly before input.

Q2: Does this work for non-circular pipes?
A: No, this equation is specifically for circular pipes. For other shapes, different area calculations are needed.

Q3: What's the difference between flow rate and velocity?
A: Velocity is how fast the fluid is moving, while flow rate is how much volume passes a point per unit time.

Q4: Does this account for friction or viscosity?
A: No, this is the simplest form of the equation. More complex versions include these factors.

Q5: Can I use diameter instead of radius?
A: Yes, but you'll need to convert diameter to radius (radius = diameter/2) before input.