Flow to Velocity Calculator

Velocity Formula:

\[ v = \frac{Q}{A} \]

Velocity (v):

m/s

1. What is a Flow to Velocity Calculator?

Definition: This calculator determines the velocity of a fluid based on its flow rate and the cross-sectional area of the pipe or channel.

Purpose: It helps engineers, hydrologists, and technicians calculate fluid velocity for pipe systems, rivers, and other flow applications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ v = \frac{Q}{A} \]

Where:

\( v \) — Velocity (meters per second, m/s)
\( Q \) — Flow rate (cubic meters per second, m³/s)
\( A \) — Cross-sectional area (square meters, m²)

Explanation: The flow rate is divided by the cross-sectional area to determine the average velocity of the fluid.

3. Importance of Velocity Calculation

Details: Knowing fluid velocity is crucial for designing pipe systems, calculating pressure drops, determining erosion potential, and ensuring proper flow conditions.

4. Using the Calculator

Tips: Enter the flow rate in m³/s and the cross-sectional area in m². Both values must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for the inputs?
A: The calculator uses metric units (m³/s for flow rate and m² for area), but you can convert from other units before entering values.

Q2: Does this work for any fluid?
A: Yes, the formula works for any incompressible fluid (water, oil, etc.) as long as the flow is steady and uniform.

Q3: What if my pipe isn't circular?
A: Calculate the cross-sectional area based on the actual shape (rectangle, oval, etc.) and use that area value.

Q4: Is this the actual velocity or average velocity?
A: This gives the average velocity across the cross-section. Actual velocity varies across the pipe due to friction.

Q5: How accurate is this calculation?
A: It provides theoretical average velocity. For precise engineering, consider factors like pipe roughness and fluid viscosity.