1. What is a Water Pressure to Velocity Calculator?

Definition: This calculator converts water pressure to velocity using Bernoulli's principle for incompressible flow.

Purpose: It helps engineers and fluid dynamics professionals determine water velocity based on pressure measurements.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Water velocity (meters/second)
• \( P \) — Water pressure (Pascals)
• \( \rho \) — Water density (kg/m³, default 1000)

Explanation: The formula derives from Bernoulli's equation, assuming steady, incompressible, frictionless flow along a streamline.

3. Importance of Water Velocity Calculation

Details: Understanding water velocity helps in designing piping systems, calculating flow rates, and analyzing hydraulic systems.

4. Using the Calculator

Tips: Enter the water pressure in Pascals and water density (default 1000 kg/m³). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What assumptions does this calculation make?
A: It assumes ideal conditions: no friction losses, incompressible flow, and no elevation changes.

Q2: How accurate is this calculation for real-world applications?
A: It provides theoretical maximum velocity. Real systems will have lower velocities due to friction and other losses.

Q3: When would I change the water density value?
A: For saltwater (density ~1025 kg/m³) or other liquids with different densities.

Q4: What's a typical water pressure in household systems?
A: Residential water pressure typically ranges from 200,000 to 500,000 Pa (2-5 bar).

Q5: How does this relate to flow rate?
A: Flow rate (Q) = Velocity (V) × Cross-sectional area (A). You need pipe diameter to calculate flow rate.