26 citations · 95 across the 8 of their papers we have counts for
8 papers
Numerical Modeling of Complex Porous Media For Borehole Applications
Seungoh Ryu, Weishu Zhao, Gabriela Leu +3
The diffusion/relaxation behavior of polarized spins of pore filling fluid, as often probed by NMR relaxometry, is widely used to extract information on the pore-geometry. Such inf…
Effect of inhomogeneous surface relaxivity, pore geometry and internal field gradient on NMR logging:exact and perturbative theories and numerical investigations
Seungoh Ryu
Nuclear magnetic resonance is widely used as a probe of pore geometry and fluid composition in well logging. One of the critical assumptions often made is that the diffusion of flu…
Effects of inhomogeneous partial absorption and the geometry of the boundary on the population evolution of molecules diffusing in general porous media
Seungoh Ryu
We consider aspects of the population dynamics, inside a bound domain, of diffusing agents carrying an attribute which is stochastically destroyed upon contact with the boundary. T…
Aspects of diffusive-relaxation dynamics with a non-uniform, partially absorbing boundary in general porous media
Seungoh Ryu, David Linton Johnson
We consider the Helmholtz problem in the context of the evolution of uniform initial distribution of a physical attribute in general porous media subject to a partially absorbing b…
Probing Pores Using Elementary Quantum Mechanics
Seungoh Ryu
The relaxation of polarized spins in a porous medium has been utilized as a probe of its structure. We note that the governing diffusion problem has a close parallel to that of a p…
Nature of the Low Field Transition in the Mixed State of High Temperature Superconductors
Seungoh Ryu, David Stroud
We have numerically studied the statics and dynamics of a model three-dimensional vortex lattice at low magnetic fields. For the statics we use a frustrated 3D XY model on a stacke…
Flux noise and Fluctuation conductivity in Unfrustrated Josephson Junction Arrays
Ing-Jye Hwang, Seungoh Ryu, D. Stroud
We study the flux noise and finite frequency conductivity in two dimensional unfrustrated Josephson junction arrays (JJA's), by numerically solving the equations…
Magnetization Jump in a Model for Flux Lattice Melting at Low Magnetic Fields
Seungoh Ryu, D. Stroud
Using a frustrated XY model on a lattice with open boundary conditions, we numerically study the magnetization change near a flux lattice melting transition at low fields. In both…