15 papers
Harmonic forcing of an extended oscillatory system: Homogeneous and periodic solutions
Jeenu Kim, Jysoo Lee, Byungnam Kahng
In this paper we study the effect of external harmonic forcing on a one-dimensional oscillatory system described by the complex Ginzburg-Landau equation (CGLE). For a sufficiently…
Super-lattice, rhombus, square, and hexagonal standing waves in magnetically driven ferrofluid surface
Hyun-Jae Pi, So-yeon Park, Jysoo Lee +1
Standing wave patterns that arise on the surface of ferrofluids by (single frequency) parametric forcing with an ac magnetic field are investigated experimentally. Depending on the…
Does hardcore interaction change absorbing type critical phenomena?
Sungchul Kwon, Jysoo Lee, Hyunggyu Park
It has been generally believed that hardcore interaction is irrelevant to absorbing type critical phenomena because the particle density is so low near an absorbing phase transitio…
Mechanism for Surface Waves in Vibrated Granular Material
Jysoo Lee
We use molecular dynamics simulations to study the formation of surface waves in vertically vibrated granular material. We find that horizontal movements of particles, which are es…
Circular Kinks on the Surface of Granular Material Rotated in a Tilted Spinning Bucket
Sangsoo Yoon, Byeong-ho Eom, Jysoo Lee +1
We find that circular kinks form on the surface of granular material when the axis of rotation is tilted more than the angle of internal friction of the material. Radius of the kin…
Microscopic Motion of Particles Flowing through a Porous Medium
Jysoo Lee, Joel Koplik
We use Stokesian Dynamics simulations to study the microscopic motion of particles suspended in fluids passing through porous media. We construct model porous media with fixed sphe…