The ARDA Project
Advanced Reduced Drag Aircraft
Computer Simulations
By Jean-Louis Naudin
created on April 11, 1999 - JLN Labs - Last update April 12, 1999
The ARDA Project
Advanced
Reduced
Drag
Aircraft
Computer Simulations
By Jean-Louis Naudin
created on April 11, 1999 - JLN
Labs - Last update April 12, 1999
The purpose of this project is to build a light weight
flying aircraft which uses an EHD
(Electro-HydroDynamics)
apparatus based on the T.T. Brown effect
for reducing significantly the air drag on the wings during the
fly, this will reduce the power consumption of the engines and
also will improve the flight performances. I have experimented
successfuly the T.T.Brown effect
in a previous experiment with two
rotating wings.
I have selected the EPPLER 338
airfoil profile for the ARDA Wing, because this airfoil profile
is one of the best for a flying wing. The wing surface must be
covered by a thin conductive layer ( a thin aluminum sheet for
instance ) and connected to the positive
potential of the High Voltage Generator. A thin
wire used as the negative electrode (connected
to negative potential of the High Voltage Generator) must be
placed just in front of the leading edge of the ARDA Wing and a
above center line as shown in the diagram below.
The picture above is a computer simulation which shows the equipotential map of the E-Field around the ARDA Wing
The picture above shows the hydrostatic pressure map of the medium, induced by the non-uniform E-Field around the ARDA Wing. You may notice that the hydrostatic pressure (can be compared to aerodynamic pressure) is lower on the upper surface ( extrados ) than on the lower surface of the wing ( intrados ). This differential pressure by the EHD Effect is the direct cause of the additionnal lift of the wing. This is a static diagram, the conventional air lifting process generated by the motion of the Eppler 338 profile in the air must be added.
The diagram above shows the curve of the hydrostatic pressure above the surface of the wing along the big red line. You may see also the speed vectors ( the small blue arrows ) of the medium around the ARDA Wing. The unbalanced low pressure on wing extrados produces an additional thrust ( I have demonstrated this experimentaly with the T.T.Brown device ), so an ARDA Wing is able to create its own lifting force and its own motional force by the EHD effect...
Email : JNaudin509@aol.com
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