Supero Science, 201
We don’t have the time, space, energy or airspeed to discuss all the research that’s gone into the Coanda Effect, or to document its current industrial uses, so what we present here is a “starter kit” to help you with further research, if you’re so inclined. Each of the references below has it’s own set of references which you can follow. We recommend that if you read nothing else in this section, you check out the first reference, by Terry Day.
The Coanda Effect and Lift
One of the best explanations for non-engineers, with examples, appropriately titled: “The Coanda Effect and Lift“, Terry Day, 27 pages, 2008. (Downloadable 2.8MB PDF.) The one thing Terry misses is what we’ve been able to do.
“Development of the general concept continued at NASA in the 1950s and 60s, leading to simplified systems with similar performance. The externally-blown flap arranges the engine to blow across the flaps at the rear of the wing. Some of the jet exhaust is deflected downward directly by the flap, while additional air travels through the slots in the flap and follows the outer edge due to the Coanda Effect. The similar upper-surface blowing system arranges the engines over the wing and relies completely on the Coanda Effect to redirect the airflow. Although not as effective as direct blowing, these “powered lift” systems are nevertheless quite powerful and much simpler to build and maintain.” [More…]
Circulation Control Wing (CCW)
“The CCW works by increasing the velocity of the airflow over the leading edge and trailing edge of a specially designed aircraft wing using a series of blowing slots that eject high pressure jet air. The wing has a rounded trailing edge to tangentially eject the air through the Coanda Effect thus causing lift. The increase in velocity of the airflow over the wing also adds to the lift force through conventional airfoil lift production.” [More…]
Circulation Control Technology
Applications of Circulation Control Technology, Ronald D. Joslin, Office of Naval Research
Gregory S. Jones, NASA Langley Research Center, Progress in Astronautics and Aeronautics Series, 214. Published by AIAA, © 2006, 625 pages, Hardback, ISBN-10: 1-56347-789-0 ISBN-13: 978-1-56347-789-8. Available in hardback or ebook.
Other Coanda Effect applications
Inclined hydropower screens, automotive windshield washers without moving parts, air conditioning improvements, cardiovascular medicine, flying saucers… and more.
Next, we’d really like to show you what we at Supero are doing. For that go to Supero Science, 301, and then our Technology and Test Results pages.