1. What is a Velocity from Flow Rate Calculator?

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

Purpose: It helps engineers, plumbers, and fluid dynamics professionals calculate fluid velocity for system design and analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Velocity (meters per second)
• \( Q \) — Volumetric flow rate (cubic meters per second)
• \( A \) — Cross-sectional area (square meters)

Explanation: The flow rate is divided by the cross-sectional area to determine the average velocity of the fluid.

3. Importance of Velocity Calculation

Details: Knowing fluid velocity is crucial for determining pressure drops, ensuring proper flow rates, and preventing erosion or sedimentation in pipes.

4. Using the Calculator

Tips: Enter the flow rate in m³/s and the cross-sectional area in m². Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use?
A: The calculator uses SI units (m³/s for flow, m² for area, m/s for velocity). Convert other units before entering values.

Q2: Does this work for any fluid?
A: Yes, the calculation is valid for any incompressible fluid (water, oil, etc.) flowing through a pipe or channel.

Q3: What if my pipe is circular?
A: Calculate area using \( A = \pi r^2 \) where r is the pipe radius before entering the value.

Q4: Is this the actual or average velocity?
A: This gives the average velocity. Actual velocity varies across the pipe's cross-section.

Q5: What's a typical velocity for water in pipes?
A: Domestic water systems typically maintain 0.5-2.5 m/s to balance flow and prevent pipe damage.