Flow Rate Formula:
Definition: This calculator determines the maximum volumetric flow rate of a fluid through a pipe based on the cross-sectional area and flow velocity.
Purpose: It helps engineers, plumbers, and fluid system designers calculate pipe capacity for water supply, HVAC systems, and industrial applications.
The calculator uses the formula:
Where:
Explanation: The flow rate is simply the product of the pipe's cross-sectional area and the average velocity of the fluid.
Details: Accurate flow rate calculations ensure proper pipe sizing, efficient system design, and prevent issues like excessive pressure drops or inadequate flow.
Tips: Enter the pipe's cross-sectional area in m² and the fluid velocity in m/s. For circular pipes, area = π × (diameter/2)².
Q1: How do I calculate cross-sectional area for a circular pipe?
A: Use the formula A = π × r² where r is the pipe's inner radius in meters.
Q2: What's a typical flow velocity for water in pipes?
A: For residential plumbing, 0.5-2.5 m/s is common. Higher velocities may cause noise and erosion.
Q3: Does this account for friction losses?
A: No, this calculates theoretical maximum flow. Actual flow may be less due to friction and other factors.
Q4: Can I use this for gases?
A: Yes, but ensure velocity and area units are consistent (m/s and m²).
Q5: How do I convert m³/s to other units?
A: 1 m³/s = 1000 liters/second = 15850 gallons/minute (US).