1. What is the Flow Equation?

The flow equation calculates the volumetric flow rate of gas through a pipe by multiplying the velocity of the gas by the cross-sectional area of the pipe. This fundamental principle is widely used in fluid dynamics and piping system design.

2. How Does the Calculator Work?

The calculator uses the flow equation:

Where:

• \( Velocity \) — Gas velocity in meters per second (m/s)
• \( Area \) — Cross-sectional area of pipe in square meters (m²)

Explanation: The equation represents the volume of gas passing through a given point in the pipe per unit time.

3. Importance of Flow Calculation

Details: Accurate flow calculation is essential for designing piping systems, determining pump requirements, and ensuring proper gas delivery in industrial applications.

4. Using the Calculator

Tips: Enter velocity in m/s and area in m². Both values must be positive numbers. For circular pipes, area can be calculated as π × radius².

5. Frequently Asked Questions (FAQ)

Q1: What units should be used for accurate results?
A: The calculator uses SI units (m/s for velocity and m² for area). Convert other units to these before calculation.

Q2: Does this work for liquids as well as gases?
A: Yes, the basic flow equation applies to both liquids and gases, though additional factors may need consideration for compressible gases.

Q3: How do I calculate pipe area?
A: For circular pipes: Area = π × (inner diameter/2)². For rectangular ducts: Area = width × height.

Q4: What affects gas velocity in pipes?
A: Pressure differential, pipe diameter, gas viscosity, temperature, and pipe roughness all influence velocity.

Q5: When is this simple equation not sufficient?
A: For compressible flows, high velocities, or non-ideal conditions, more complex equations accounting for pressure changes may be needed.