1. What is a Flow Rate of Fluid Calculator?

Definition: This calculator estimates the flow rate of fluid in gallons per minute (GPM) based on velocity and cross-sectional area.

Purpose: It helps engineers and technicians determine fluid flow rates in pipes, channels, and other hydraulic systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Flow rate (gallons per minute, GPM)
• \( V \) — Velocity of fluid (feet per second, ft/s)
• \( A \) — Cross-sectional area (square feet, ft²)
• 448.83 — Conversion factor (from ft³/s to GPM)

Explanation: The velocity is multiplied by the area to get flow in cubic feet per second, then converted to gallons per minute.

3. Importance of Flow Rate Calculation

Details: Accurate flow rate estimation ensures proper system design, pump sizing, and process control in fluid systems.

4. Using the Calculator

Tips: Enter the fluid velocity in ft/s and cross-sectional area in ft². All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 448.83?
A: It converts cubic feet per second to gallons per minute (1 ft³/s = 448.83 GPM).

Q2: What's a typical velocity for water in pipes?
A: Typically 2-8 ft/s for water, depending on pipe size and application.

Q3: How do I calculate cross-sectional area?
A: For circular pipes: \( A = \pi \times r^2 \) where r is the radius in feet.

Q4: Does this work for any fluid?
A: Yes, but the velocity should be appropriate for the specific fluid properties.

Q5: What if my area is in square inches?
A: Convert to square feet first (1 ft² = 144 in²).