Sciweavers

JCPHY
2011
133views more  JCPHY 2011»
13 years 2 months ago
A Riemann solver for single-phase and two-phase shallow flow models based on relaxation. Relations with Roe and VFRoe solvers
We present a Riemann solver derived by a relaxation technique for classical single-phase shallow flow equations and for a two-phase shallow flow model describing a mixture of so...
Marica Pelanti, François Bouchut, Anne Mang...
JCPHY
2011
89views more  JCPHY 2011»
13 years 2 months ago
Numerically stable fluid-structure interactions between compressible flow and solid structures
We propose a novel method to implicitly two-way couple Eulerian compressible flow to volumetric Lagrangian solids. The method works for both deformable and rigid solids and for a...
Jón Tómas Grétarsson, Nipun K...
JCPHY
2011
87views more  JCPHY 2011»
13 years 2 months ago
A fast directional algorithm for high-frequency electromagnetic scattering
This paper is concerned with the fast solution of high frequency electromagnetic scattering problems using the boundary integral formulation. We extend the O(N log N) directional ...
Paul Tsuji, Lexing Ying
JCPHY
2011
86views more  JCPHY 2011»
13 years 2 months ago
A numerical scheme for particle-laden thin film flow in two dimensions
The physics of particle-laden thin film flow is not fully understood, and recent experiments have raised questions with current theory. There is a need for fully two-dimensional...
Matthew R. Mata, Andrea L. Bertozzi
JCPHY
2011
192views more  JCPHY 2011»
13 years 2 months ago
Fast analysis of molecular dynamics trajectories with graphics processing units - Radial distribution function histogramming
The calculation of radial distribution functions (RDFs) from molecular dynamics trajectory data is a common and computationally expensive analysis task. The rate limiting step in ...
Benjamin G. Levine, John E. Stone, Axel Kohlmeyer
JCPHY
2011
79views more  JCPHY 2011»
13 years 2 months ago
Stochastic Eulerian Lagrangian methods for fluid-structure interactions with thermal fluctuations
A computational approach is introduced for the study of the rheological properties of complex fluids and soft materials. The approach allows for a consistent treatment of microstr...
Paul J. Atzberger
JCPHY
2011
109views more  JCPHY 2011»
13 years 2 months ago
Fast construction of hierarchical matrix representation from matrix-vector multiplication
We develop a hierarchical matrix construction algorithm using matrixvector multiplications, based on the randomized singular value decomposition of low-rank matrices. The algorith...
Lin Lin, Jianfeng Lu, Lexing Ying
JCPHY
2011
85views more  JCPHY 2011»
13 years 2 months ago
A fast method for the solution of the Helmholtz equation
In this paper, we consider the numerical solution of the Helmholtz equation, arising from the study of the wave equation in the frequency domain. The approach proposed here diffe...
Eldad Haber, Scott MacLachlan