1. What is the Pressure at Point in Piezometer Formula?

The pressure at a point in a piezometer is calculated using the formula p = S × h, where S is the specific weight of the liquid and h is the pressure head. This formula provides the hydrostatic pressure at a specific point in a fluid at rest.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( p \) — Pressure at the point (Pascal)
• \( S \) — Specific weight of liquid in piezometer (N/m³)
• \( h \) — Pressure head (m)

Explanation: The pressure at any point in a fluid at rest is directly proportional to the specific weight of the fluid and the vertical height of the fluid column above that point.

3. Importance of Pressure Calculation

Details: Accurate pressure calculation is crucial for designing hydraulic systems, understanding fluid behavior in containers, and ensuring structural integrity in fluid-containing vessels.

4. Using the Calculator

Tips: Enter the specific weight of the liquid in N/m³ and the pressure head in meters. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is specific weight of a liquid?
A: Specific weight is the weight per unit volume of a substance, typically measured in N/m³ in the SI system.

Q2: How is pressure head measured?
A: Pressure head is the height of a liquid column that corresponds to a particular pressure, measured in meters of the fluid.

Q3: What are typical units for pressure calculation?
A: Pressure is typically measured in Pascals (Pa) in the SI system, though other units like kPa, bar, or psi may also be used.

Q4: Does this formula work for all fluids?
A: This formula works for any incompressible fluid at rest, but the specific weight value must be appropriate for the particular fluid being measured.

Q5: How does temperature affect the calculation?
A: Temperature affects the specific weight of the fluid, so measurements should be taken at known temperatures for accurate results.