1. What is Pressure in Water Tank?

Pressure in a water tank refers to the force exerted by the water per unit area at a specific depth. It increases with depth due to the weight of the water above. This pressure is calculated using the formula P_g = ρ g h, where ρ is density, g is gravity, and h is height.

2. How Does the Calculator Work?

The calculator uses the pressure formula:

Where:

• \( P_g \) — Pressure at depth (Pascals)
• \( \rho \) — Density of fluid (kg/m³)
• \( g \) — Acceleration due to gravity (m/s²)
• \( h \) — Height of fluid column (m)

Explanation: The pressure at any point in a fluid at rest depends on the depth of that point, the density of the fluid, and the acceleration due to gravity.

3. Importance of Pressure Calculation

Details: Accurate pressure calculation is crucial for designing water storage systems, determining pump requirements, ensuring structural integrity of tanks, and understanding fluid behavior in various engineering applications.

4. Using the Calculator

Tips: Enter fluid density in kg/m³ (1000 for water), gravity in m/s² (9.81 on Earth), and height in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why does pressure increase with depth?
A: Pressure increases with depth because the weight of the fluid above increases, exerting more force on the area below.

Q2: Does the shape of the container affect pressure?
A: No, pressure depends only on depth, density, and gravity, not on the shape or size of the container.

Q3: What is the standard density value for water?
A: The density of pure water is approximately 1000 kg/m³ at 4°C.

Q4: How does temperature affect pressure calculations?
A: Temperature affects fluid density. Warmer fluids are generally less dense, which would result in slightly lower pressure at the same depth.

Q5: Can this formula be used for other fluids?
A: Yes, this formula works for any fluid, but you must use the correct density value for that specific fluid.