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Velocity of Flow Calculator

Velocity Formula:

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

m³/s

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1. What is a Velocity of Flow Calculator?

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

Purpose: It helps engineers, plumbers, and fluid system designers calculate how fast a fluid is moving through a conduit.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

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

3. Importance of Flow Velocity Calculation

Details: Proper velocity calculation ensures efficient system design, prevents pipe erosion, and maintains optimal flow conditions.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What units should I use?
A: The calculator uses metric units (m³/s for flow rate, m² for area, m/s for velocity).

Q2: How do I measure cross-sectional area?
A: For circular pipes: \( A = \pi r² \). For rectangular channels: \( A = width \times height \).

Q3: What's a typical flow velocity?
A: In plumbing, 0.5-2.5 m/s is common. Higher velocities may cause noise and pipe wear.

Q4: Does this work for gases?
A: Yes, the formula applies to both liquids and gases in steady, uniform flow.

Q5: How does velocity relate to pressure?
A: Higher velocity generally means lower pressure (Bernoulli's principle).

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