1. What is Wind Pressure From Wind Speed?

Definition: This calculator determines the dynamic pressure exerted by wind based on air density and wind speed.

Purpose: It helps engineers, architects, and meteorologists calculate wind loads for structural design and analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Wind pressure (Pascals)
• \( \rho \) — Air density (kg/m³)
• \( v \) — Wind speed (m/s)

Explanation: The wind pressure increases with the square of wind speed and linearly with air density.

3. Importance of Wind Pressure Calculation

Details: Accurate wind pressure calculations are essential for designing buildings, bridges, and other structures to withstand wind loads.

4. Using the Calculator

Tips: Enter air density (default 1.225 kg/m³ for standard conditions) and wind speed in m/s. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the standard air density value?
A: At sea level and 15°C, air density is approximately 1.225 kg/m³.

Q2: How does altitude affect the calculation?
A: Air density decreases with altitude - use lower ρ values for higher elevations.

Q3: What units should I use for wind speed?
A: The formula requires m/s. Convert from km/h by dividing by 3.6, or from mph by multiplying by 0.447.

Q4: Is this the same as wind load?
A: Wind pressure is one component of wind load, which also considers shape and exposure factors.

Q5: How does temperature affect the result?
A: Warmer air is less dense, so wind pressure decreases with increasing temperature at constant wind speed.