1. What is a Pressure to Velocity Calculator?

Definition: This calculator converts dynamic pressure to velocity using fluid density.

Purpose: It helps engineers and physicists determine fluid flow velocity from pressure measurements.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Velocity (meters/second)
• \( q \) — Dynamic pressure (Pascals)
• \( \rho \) — Fluid density (kg/m³)

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

3. Importance of Pressure-Velocity Conversion

Details: This calculation is essential in aerodynamics, hydraulics, and HVAC system design.

4. Using the Calculator

Tips: Enter dynamic pressure in Pascals and fluid density (default 1.225 kg/m³ for air at sea level). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is dynamic pressure?
A: It's the kinetic energy per unit volume of a fluid particle, measured in Pascals (Pa).

Q2: What's a typical air density value?
A: At sea level and 15°C, air density is approximately 1.225 kg/m³.

Q3: Does this work for compressible flows?
A: This formula is for incompressible flows. For compressible flows, more complex equations are needed.

Q4: How accurate is this calculation?
A: It's accurate for ideal, incompressible fluids with no viscosity effects.

Q5: What units should I use?
A: Use Pascals for pressure and kg/m³ for density to get velocity in m/s.