1. Development of Aerodynamic Forces

2. Overview Streamline Patterns Review Pressure Patterns Understanding how lift is Generated

3. Streamline Review

4. Streamline Definition A streamline is a path traced out by a mass less particle moving with the air flow. Velocity is tangent to the streamline at every point. Mass does not cross streamlines. Streamlines moving closer together indicate increased speed and decreased static pressure and vice versa.

5. Pressure Patterns Streamline patterns and pressure distributions on a non-rotating cylinder and symmetric airfoil at zero angle of attack.

6. Lift Generation Cylinder with circulation and lift

7. Lift Generation

8. Lift on a wing Lift results from two mass actions on a wing. PRESSURE Airflow Deflection = a force (3 rd Law of Newton)

9. Understanding the Coanda Effect