Flow Rate Formula:
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Definition: This calculator converts linear velocity to volumetric flow rate in gallons per minute (GPM).
Purpose: It helps engineers and technicians determine fluid flow rates in pipes and channels based on velocity measurements.
The calculator uses the formula:
Where:
Explanation: The linear velocity is multiplied by the cross-sectional area to get cubic feet per second, then converted to GPM.
Details: Accurate flow rate calculations are essential for system design, pump sizing, and process control in fluid systems.
Tips: Enter the linear velocity in ft/s and cross-sectional area in ft². All values must be > 0.
Q1: What is the 448.83 conversion factor?
A: It converts cubic feet per second to gallons per minute (1 ft³/s = 448.83 GPM).
Q2: How do I find the cross-sectional area?
A: For circular pipes: \( A = \pi \times r^2 \) where r is the radius in feet.
Q3: Can I use this for any fluid?
A: Yes, but note this assumes incompressible flow. For compressible fluids, additional factors are needed.
Q4: What's a typical pipe velocity?
A: Water in pipes typically flows at 2-8 ft/s depending on application and pipe size.
Q5: How accurate is this calculation?
A: It provides theoretical flow rate. Actual flow may vary due to friction, viscosity, and other factors.