Effects of magnetic field intensity on ionic wind characteristics

The characteristics of ionic wind under the magnetic field are studied by using a needle-to-mesh electrode. With the increasing of magnetic field intensity, the amplitude of Trichel pulse decreases and the pulse frequency increases significantly; the ionic wind speed clouds in the yOz plane shift from concentric circle to eccentric ellipse, and the ionic wind profiles along y-axis gradually transfer from a symmetrical distribution to a biased state; the maximum wind speed value and the corresponding electrical-to-kinetic energy conversion efficiency are also increased. These results illustrate that the magnetic field could adjust the ionic wind.