Zobrazeno 1 - 10
of 14
pro vyhledávání: '"William Y. Crutchfield"'
Autor:
Vladimir Rokhlin, Zydrunas Gimbutas, Norman Yarvin, Leslie Greengard, J. Frank Ethridge, William Y. Crutchfield, Hongwei Cheng, Junsheng Zhao, Jingfang Huang
Publikováno v:
Journal of Computational Physics. 216:300-325
We describe a wideband version of the Fast Multipole Method for the Helmholtz equation in three dimensions. It unifies previously existing versions of the FMM for high and low frequencies into an algorithm which is accurate and efficient for any freq
Publikováno v:
Journal of Computational Physics. 165:311-333
Trickle bed reactors are governed by equations of flow in porous media such as Darcy’s law and the conservation of mass. Our numerical method for solving these equations is based on a total-velocity splitting, sequential formulation which leads to
Publikováno v:
Computing and Visualization in Science. 3:147-157
We describe an approach to parallelization of structured adaptive mesh refinement algorithms. This type of adaptive methodology is based on the use of local grids superimposed on a coarse grid to achieve sufficient resolution in the solution. The key
Publikováno v:
Journal of Computational Physics. 154:134-155
Adaptive mesh and algorithm refinement (AMAR) embeds a particle method within a continuum method at the finest level of an adaptive mesh refinement (AMR) hierarchy. The coupling between the particle region and the overlaying continuum grid is algorit
Autor:
W.A. Fiveland, William Y. Crutchfield, R.B. Pember, Louis H. Howell, Phillip Colella, J.P. Jessee, John B. Bell
Publikováno v:
Combustion Science and Technology. 140:123-168
We present an adaptive projection method for modeling unsteady, low-Mach reacting flow in an unconfined region. The equations are based on a model for low-Mach number combustion that consists of evolution equations coupled with a constraint on the di
Publikováno v:
12th Computational Fluid Dynamics Conference.
A numerical scheme for simulation of unsteady, viscous, compressible flows is considered. The scheme employs an explicit discretization of the inviscid terms of the Navier-Stokes equations and an implicit discretization of the viscous terms. The disc
Publikováno v:
Fluid Dynamics Conference.
The development of a three-dimensional spatially evolving compressible mixing layer is investigated numerically using a parallel implementation of Adaptive Mesh Refinement (AMR) on a Cray C-90. The parallel implementation allowed the flow to be highl
Publikováno v:
Optics Express. 12:3791
We present a new integral equation method for calculating the electromagnetic modes of photonic crystal fiber (PCF) waveguides. Our formulation can easily handle PCFs with arbitrary hole geometries and irregular hole distributions, enabling optical c
Publikováno v:
Optics Express. 12:4220
Photonic crystal fibers are well-known to offer a number of unusual properties, including supercontinuum generation, large mode-areas and controllable dispersion behavior. Their manufacturability would be enhanced by a more detailed understanding of
Publikováno v:
Physics Letters B. 102:347-351
We study the effect of non-perturbative vacuum fluctuations on the angular correlation of a quark and gluon produced in e+e− annihilation at high energies. Long-wavelength background fields induce and exponential falloff in the invariant mass q2 of