Here a project of a Coanda Effect Saucer (CES) stabilized with a 9D0F IMU. The CES UAV, propelled by an electric engine, uses the Coanda effect to take off vertically, fly, hover and land vertically (VTOL). There is no big rotor like on an helicopter and the flight is very stable and safe for the surrounding.
The Coanda Effect has been discovered in1930 by the Romanian aerodynamicist Henri-Marie Coanda (1885-1972). He has observed that a steam of air (or a other fluid) emerging from a nozzle tends to follow a nearby curved surface, if the curvature of the surface or angle the surface makes with the stream is not too sharp.
I use my firmware AutoStab v4.0 installed the ArduIMU+ V2 flat with a special mixer for this device.
Stay tuned on this blog, more to come soon,
Jean-Louis
Comments
I know your original post is a little old now Jean-Louis, but it's good to see that, independently of you, I've been able to come to the same theoretical conclusions - I'm going to experiment in a slightly different direction, but the basics on show here will still apply in general.
Did you ever do any further testing?
Regards,
Phill
With a winged aircraft, the wings do nothing except generate lift or hold fuel. Therefore it's important to maximize wing surface area versus weight. With the Coander Effect, the entire body generates lift, and payload can be put inside that body, with no need for wings. That's where the extra efficiency come into play, I think.
Hey Jean-Louis, just wondering, what is the software that you're using to do the CFD analysis that you're showing for this post. I'm interested in testing out a model that I've made in Blender.
You will find a FULL TUTORIAL for building yourself the Coanda Effect Saucer HERE.
I hope that you will soon enjoy to pilot yourself your own RC flying saucer...
Happey building and flights,
Jean-Louis
Hello Shyam Ramanath,
Thanks for your interest in my Coanda effect Saucer.
You will find all the plan for building and replicate yourself the Coanda Effect Saucer:
- in full size (scale 1/1) in DXF format HERE
- in XPS format (scale 1/1), ready to print on a A4 printer HERE
Regards,
Jean-Louis ..
Hello Eric,
You will find below some opensource CFD softwares at:
OpenFoam the Opensource CFD toolbox
Virtual Flow Lab
Typhon CFD Open Source
OpenFlower CFD Open Source
I hope this will help you,
Regards, Jean-Louis
Hi Jean-Louis,
I have a couple of questions. I was wondering if you could comment on the sensitivity of this design on scale. I.E. I where to just just scale this design down by 10% (so as to fit the particular material in have available at the local office supply store) would I get reasonable results?
The next question (so that maybe I could answer the previous question by myself at some point) do you know if there is open source CFD code available anywhere?
Any help would be appreciated.
The FULL SILVERBUG PROJECT PAPER CAN BE DOWNLOADED HERE
Regards, Jean-Louis
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