Pipe Flow Velocity Equation:
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The pipe flow velocity equation calculates the velocity of fluid flow in a pipe based on pressure difference and fluid density. This simplified version is derived from Bernoulli's principle and provides an estimate of flow velocity.
The calculator uses the pipe flow velocity equation:
Where:
Explanation: The equation shows that flow velocity increases with pressure difference and decreases with fluid density, following a square root relationship.
Details: Calculating flow velocity is essential for pipe system design, fluid transport efficiency analysis, pressure drop calculations, and ensuring proper flow characteristics in various engineering applications.
Tips: Enter pressure difference in Pascals (Pa) and fluid density in kg/m³. Both values must be positive numbers greater than zero for valid calculation.
Q1: What is the relationship between GPM and flow velocity?
A: GPM (gallons per minute) is a flow rate measurement, while flow velocity is speed. They are related through pipe cross-sectional area: velocity = flow rate / area.
Q2: How do I convert PSI to Pascals for this calculator?
A: 1 PSI = 6894.76 Pascals. Multiply your PSI value by 6894.76 to get the equivalent in Pascals.
Q3: What are typical density values for common fluids?
A: Water: ~1000 kg/m³, Air: ~1.2 kg/m³, Oil: ~800-900 kg/m³, Gasoline: ~720-780 kg/m³.
Q4: Are there limitations to this simplified equation?
A: Yes, this simplified version doesn't account for pipe friction, viscosity, or complex flow patterns. It provides an ideal maximum velocity estimate.
Q5: When should I use this equation versus more complex formulas?
A: Use this for quick estimates and ideal flow conditions. For precise engineering calculations, use more comprehensive equations that account for friction factors and Reynolds numbers.