Piezometric Pressure Calculator

Piezometric Pressure Formula:

\[ P = \rho_{water} \times [g] \times L \]

Piezometric Pressure Head:

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1. What is Piezometric Pressure Head?

Piezometric pressure head is defined as the height of a column of water that would have the same pressure as the water at a particular point in a flowing fluid. It represents the mechanical energy per unit weight of the fluid.

2. How Does the Calculator Work?

The calculator uses the piezometric pressure formula:

\[ P = \rho_{water} \times [g] \times L \]

Where:

\( P \) — Piezometric pressure head (Pa)
\( \rho_{water} \) — Water density (kg/m³)
\( [g] \) — Gravitational acceleration (9.80665 m/s²)
\( L \) — Fluid height/column length (m)

Explanation: The formula calculates the pressure exerted by a column of fluid based on its density, gravitational acceleration, and the height of the fluid column.

3. Importance of Piezometric Pressure Calculation

Details: Piezometric pressure calculation is crucial in fluid mechanics, hydrology, and civil engineering for designing water distribution systems, analyzing groundwater flow, and understanding fluid behavior in various applications.

4. Using the Calculator

Tips: Enter water density in kg/m³ (typically 1000 kg/m³ for pure water) and fluid height in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical density value for water?
A: Pure water at 4°C has a density of 1000 kg/m³. Density varies slightly with temperature and impurities.

Q2: How does piezometric pressure differ from hydrostatic pressure?
A: Piezometric pressure includes both pressure energy and elevation energy, while hydrostatic pressure refers specifically to pressure due to the weight of the fluid column.

Q3: What units are used for piezometric pressure?
A: The SI unit is Pascals (Pa), but it can also be expressed in meters of water column or other pressure units.

Q4: Does this formula work for other fluids besides water?
A: Yes, the formula works for any fluid, but you must use the correct density value for that specific fluid.

Q5: How does temperature affect the calculation?
A: Temperature affects water density. Warmer water has slightly lower density, which would result in slightly lower pressure for the same fluid height.