Spontaneous dust mass rotation in an unmagnetized dusty plasma

Rotating electric fields in complex (dusty) plasmas

“…Another mechanism is based on the presence of a nonpotential electrostatic force acting on microparticles, e.g., due to a spatial gradient of the particle charge. [16][17][18][19] Recently, evidence was presented that the rotation of particle suspensions can also be due to vortices triggered in the neutral gas. Generation of such vortices is a nonlocal process that might have various origins, e.g., thermal creep 20 or ion drag.…”

Formation and evolution of vortices in a collisional strongly coupled dusty plasma

“…Recently, Schwabe et al have studied the properties of dust vortices in light of turbulence and reported that velocity structure function scaling is very close to the prediction by Kolmogorov theory [35]. Agarwal et al have observed spontaneous rotation of a strongly coupled dusty plasma cloud in the absence of any external magnetic field induced by charge gradients perpendicular to gravity [36]. Ratynskaia et al, have studied visco elastic vortical fluid motion in strongly coupled monolayer dusty plasma observed in a capacitively coupled radio-frequency (rf) plasma experiment, and reported the importance of dust-neutral collisional drag for studying long time scale and large spatial scale vortical fluid flows [37].…”

Rayleigh–Taylor instability driven nonlinear vortices in dusty plasmas

“…In some recent laboratory studies, 10,11 self-excitation of rotational motion of dust particles has been observed in dc glow discharge plasmas with rotational velocities in the range of a few hertz. In some recent laboratory studies, 10,11 self-excitation of rotational motion of dust particles has been observed in dc glow discharge plasmas with rotational velocities in the range of a few hertz.…”