Abstract:
Aerodynamics drag reduction has an advantage in terms of
conversion and conservation energy. Many technologies have
been developed in order to reduce the aerodynamics drag, one of
them is plasma actuator. Plasma actuator as an alternative kind of
active flow control is very promising and powerful in modifying
the flow comprehensively. By using ion particles, plasma actuator
becomes the forefront in terms of modify a flow and becomes
a reliable solution in order to overcome the problems which arise
in other types of active control such as installation problems, excessive
moving parts which are difficult to control and others.
Plasma actuator consists of two sheets of copper electrodes separated
by a dielectric material made of acrylic. The final output
of the plasma actuators is the ion wind which generated from the
movement phenomenon of the air flow around the actuator and
was the result of the ionization process in the air so that the air
molecules was induced and became unstable. This paper presented
two test models, a cylinder which the actuator was placed
at the point of separation and a box with two plasma actuators
placed at the leading edge and trailing edge to test the ability of
plasma to reduce aerodynamic drag effect. The experimental results
showed that the plasma actuator with a cylinder model with
the 90 degree position can produce aerodynamic drag reduction
by 20% while for a box model with a flow rate of 2 [m/s] generated
14.16% reduction of aerodynamic drag.
Description:
papers presented to the 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Costa de Sol, Spain on 11-13 July 2016.
