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The pressure difference formula calculates the difference in pressure intensities at two different points in a liquid based on the liquid height difference and the specific weight of the fluid. It's a fundamental principle in fluid mechanics and hydrostatics.
The calculator uses the formula:
Where:
Explanation: The pressure difference is directly proportional to both the height difference of the liquid column and the specific weight of the fluid.
Details: Calculating pressure differences is crucial for designing hydraulic systems, understanding fluid behavior in containers, and analyzing pressure variations in various engineering applications.
Tips: Enter liquid height difference in meters and specific weight fluid pressure in N/m³. Both values must be positive numbers.
Q1: What is specific weight fluid pressure?
A: Specific weight is the weight per unit volume of a fluid, calculated as the product of density and gravitational acceleration (γ = ρ × g).
Q2: How does this relate to hydrostatic pressure?
A: This formula is essentially the hydrostatic pressure equation, where pressure difference equals the product of fluid specific weight and height difference.
Q3: What are typical units for specific weight?
A: Specific weight is typically measured in N/m³ (newtons per cubic meter) in the SI system.
Q4: Can this formula be used for gases?
A: While the principle applies, gases are compressible so the calculation becomes more complex and this simple formula may not be accurate for significant height differences.
Q5: How does temperature affect the calculation?
A: Temperature affects fluid density, which in turn affects specific weight. For precise calculations, use specific weight values at the actual temperature.