1. What is Wind Speed to Force Per Area Calculator?

Definition: This calculator converts wind speed to pressure (force per area) using the basic wind pressure equation.

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

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 dynamic 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 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. Decreases with altitude and increases with lower temperatures.

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 is pressure proportional to velocity squared?
A: The kinetic energy of moving air is proportional to v², which translates to pressure when the air is stopped by a surface.

Q4: Does this account for gust factors?
A: No, this gives the basic wind pressure. Building codes typically include additional factors for gusts and other effects.

Q5: What's a typical wind pressure for design?
A: Residential buildings often design for 0.7-1.5 kPa, while high-rises may need to withstand 2-3 kPa or more in windy areas.