1. What is Wind Pressure?

Definition: Wind pressure is the force per unit area exerted by wind, calculated using air density and wind speed.

Purpose: This calculation is essential for structural engineering, building design, and wind load 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 critical for designing structures that can withstand wind loads, ensuring safety and structural integrity.

4. Using the Calculator

Tips: Enter air density (default 1.225 kg/m³ at sea level) 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. This decreases with altitude.

Q2: How do I convert wind speed from km/h to m/s?
A: Divide km/h by 3.6 (1 m/s = 3.6 km/h).

Q3: Why does wind pressure increase with the square of speed?
A: The kinetic energy of wind is proportional to velocity squared, resulting in this quadratic relationship.

Q4: When would I need to adjust air density?
A: For high-altitude locations, extreme temperatures, or specialized applications where air density differs significantly from standard conditions.

Q5: What's a typical wind pressure for buildings?
A: Design wind pressures vary by location but typically range from 500-1500 Pa for most structures.