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Water Flow Rate Equation:
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The water flow rate formula (Q = A × v) calculates the volumetric flow rate of water through a pipe or channel. It represents the volume of water passing through a cross-section per unit time.
The calculator uses the flow rate equation:
Where:
Explanation: The equation shows that flow rate is directly proportional to both the cross-sectional area of the pipe/channel and the velocity of the fluid.
Details: Accurate flow rate calculation is essential for designing water supply systems, irrigation systems, hydraulic engineering projects, and industrial processes involving fluid transport.
Tips: Enter the cross-sectional area in square meters (m²) and the flow velocity in meters per second (m/s). Both values must be positive numbers.
Q1: What units should I use for the inputs?
A: For consistent results, use square meters (m²) for area and meters per second (m/s) for velocity. The calculator will output flow rate in cubic meters per second (m³/s).
Q2: Can this formula be used for other fluids besides water?
A: Yes, this formula applies to any incompressible fluid, though the density and viscosity of different fluids may affect the flow velocity in practical applications.
Q3: How do I measure flow velocity in a pipe?
A: Flow velocity can be measured using various methods including flow meters, pitot tubes, or by calculating it from pressure differences and pipe characteristics.
Q4: Does pipe material affect the flow rate calculation?
A: While the basic formula Q = A × v remains valid, pipe material affects flow through friction losses, which may reduce the actual flow rate compared to theoretical calculations.
Q5: How accurate is this calculation for real-world applications?
A: This provides a theoretical maximum flow rate. Actual flow rates may be lower due to factors like friction, turbulence, viscosity, and pipe fittings.