Pipe Flow and Velocity Calculator

Flow Rate Formula:

\[ Q = A \times v \]

Flow Rate (m³/s):

1. What is a Pipe Flow and Velocity Calculator?

Definition: This calculator determines the flow rate through a pipe based on its cross-sectional area and fluid velocity.

Purpose: It helps engineers, plumbers, and fluid system designers calculate flow rates for piping systems.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Q = A \times v \]

Where:

\( Q \) — Flow rate (cubic meters per second, m³/s)
\( A \) — Cross-sectional area (square meters, m²)
\( v \) — Velocity (meters per second, m/s)

Explanation: The flow rate is simply the product of the pipe's cross-sectional area and the fluid velocity.

3. Importance of Flow Rate Calculation

Details: Accurate flow rate calculations are essential for proper system design, ensuring adequate fluid delivery and preventing pressure drops.

4. Using the Calculator

Tips: Enter the pipe's cross-sectional area in m² and the fluid velocity in m/s. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I calculate cross-sectional area?
A: For circular pipes: \( A = \pi \times r^2 \) where r is the radius. For other shapes, use appropriate area formulas.

Q2: What's a typical velocity for water in pipes?
A: Domestic water systems typically use 0.5-2.5 m/s, while industrial systems may go higher (up to 3 m/s).

Q3: Can I use this for gases?
A: Yes, the formula works for any fluid, but gas velocities are typically much higher than liquids.

Q4: How does pipe diameter affect flow rate?
A: Flow rate increases with the square of the diameter (for circular pipes), making diameter the most significant factor.

Q5: What if I know flow rate and need velocity?
A: Rearrange the formula: \( v = Q / A \). Enter Q and A to find v.