2C20.50 - Coanda Effect and Angle of Attack - Airplane Wing

Code Number:
2C20.50
Demo Title:
Coanda Effect and Angle of Attack - Airplane Wing
Condition:
Good
Principle:
Bernoulli's Principle
Area of Study:
Heat & Fluids

Disclaimer

Equipment:
Pasco cart with attached airplane wing, Plexiglas Stick with a sheet of stiff paper attached (Airplane Wing), Styrofoam airplane, Airhog Airplane.
Procedure:

Hold up the Plexiglas stick and turn it so that the paper curves in an arc.  Blow air across the top with a plastic hose and watch the paper rise into the air flow (Airplane Wing).  Adjust the wing on the Pasco cart so that blowing air across it causes the cart to move to the side.  The model airplanes are used to show curvature of airplane wings for real flying models.

For more complete discussions and information about airfoils, angles of attack, Coanda effect, and common misconceptions visit some of the websites listed in the references.

References:
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Discussion of the Physics of Airfoils - See How It Flies
Discussion of the Physics of Airfoils - Airfoil Diagrams
Discussion of the Physics of Airfoils - Airfoil Lifting Force Widespread in K-6 Textbooks
Discussion of the Coanda Effect
Discussion of Common Misconceptions - Bernoulli and Newton
Discussion of Common Misconceptions - Incorrect Theory #3
Discussion of Common Misconceptions - Incorrect Theory #1


Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist.  The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose.  The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources.  Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks.  These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage.  Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.