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Flow Rate Equation:
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The flow rate calculation formula (Q = A × v) is a fundamental equation in fluid dynamics that calculates the volumetric flow rate of a fluid through a given cross-sectional area. It represents the volume of fluid passing through a specific point per unit time.
The calculator uses the flow rate equation:
Where:
Explanation: The equation calculates how much volume of fluid passes through a given area per second, based on the fluid's velocity.
Details: Flow rate calculation is essential in various engineering applications including pipe system design, hydraulic engineering, HVAC systems, and fluid transport processes. Accurate flow rate measurement helps in system optimization and energy efficiency.
Tips: Enter the cross-sectional area in square meters (m²) and the velocity in meters per second (m/s). Both values must be positive numbers. The calculator will compute the volumetric flow rate in cubic meters per second (m³/s).
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 result will be in cubic meters per second (m³/s).
Q2: Can this formula be used for any fluid?
A: Yes, this formula applies to all Newtonian fluids where the flow is steady and the velocity profile is uniform across the cross-section.
Q3: What if the cross-section is not circular?
A: The formula works for any cross-sectional shape as long as you know the area. For non-uniform shapes, you may need to calculate the effective area.
Q4: How does temperature affect flow rate calculations?
A: Temperature affects fluid viscosity and density, which can influence velocity. For precise calculations, these factors should be considered, especially for gases.
Q5: What's the difference between volumetric and mass flow rate?
A: Volumetric flow rate (Q) measures volume per time, while mass flow rate measures mass per time. They're related by the fluid's density: mass flow rate = ρ × Q.