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Figure 2. Temperature measurement points. temperature reading points are chosen at positions x = -5.0, -2.5, 0, 2.5, 5.0, 7.5, 10.0 at 50% span of the actuator, see Fig. 1 a) and Fig. 2. B. De- and Anti-icing Tests Using Plasma Actuation in Ice Wind Tunnel a) b) Figure 3. De- and anti-icing test in ice wind tunnel. a) Test Layout. b) Schematic of cylinder model and plasma actuator. The de- and anti-icing tests are conducted in an closed-circuit low-speed icing wind tunnel as shown in Fig. 3a. The test section of icing wind tunnel has a 0.3 × 0.5 m cross section and a wind speed of 5 - 18 m/s. The temperature of icing wind tunnel can be adjusted from −25 to 30 ◦C, controllable within 3 ◦C. The supercooled water droplets with the diameter between about 100 and 200 μm are generate by electric heater to form an icing cloud. The droplet size and the water-vapour concentration are non-adjustable. The geometry parameter of the DBD plasma actuator is the same as the one used in the temperature measurements test in the quiescent air. The actuator is hand-made and directly attached to the surface of cylinder model made of the Teflon with no allowance. The diameter of the cylinder model are 45 mm, the length of the model is the same as the width of the test section of the ice wind tunnel. The AC voltage and current are measured using a Tektronix P6015A high voltage probe, a PEARSON 2877 current probe, and 4 of 14 American Institute of Aeronautics and Astronautics Downloaded by NORTHWESTERN POLYTECHICAL UNIV. on June 23, 2016 | http://arc.aiaa.org | DOI: 10.2514/6.2016-4019PDF Image | Experimental Study of Deicing and Anti-icing on a Cylinder by DBD Plasma Actuation
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