1. What is Velocity from Pressure Calculator?

Definition: This calculator determines the velocity of a fluid in a pipe based on the pressure difference and fluid density.

Purpose: It helps engineers and technicians analyze fluid flow characteristics in piping systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Fluid velocity (m/s)
• \( \Delta P \) — Pressure difference (Pa)
• \( \rho \) — Fluid density (kg/m³)

Explanation: The formula derives from Bernoulli's principle, relating pressure energy to kinetic energy in a flowing fluid.

3. Importance of Velocity Calculation

Details: Knowing fluid velocity helps in designing efficient piping systems, ensuring proper flow rates, and preventing issues like erosion or excessive pressure drops.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for pressure?
A: The calculator uses Pascals (Pa). 1 psi = 6894.76 Pa, 1 bar = 100,000 Pa.

Q2: What's a typical density for water?
A: Pure water at 4°C has a density of 1000 kg/m³, which decreases slightly with temperature.

Q3: Does this account for pipe friction?
A: No, this is the theoretical maximum velocity. Actual velocities will be lower due to friction losses.

Q4: When is this formula applicable?
A: For incompressible fluids in horizontal pipes with no elevation change and negligible friction.

Q5: How does temperature affect the calculation?
A: Temperature affects fluid density. Use the correct density for your operating temperature.