Now showing items 21-30 of 1507
Computations of three‐dimensional Rayleigh–Taylor instability
(The American Institute of Physics, 1990-05)
The fully three‐dimensional deformation of an interface between two fluids resulting from a Rayleigh–Taylor instability is studied numerically in the limit of weak stratification. The Navier–Stokes equations are solved by ...
Water diffusion profile measurements in epoxy using neutron radiography
(Elsevier, 1994-12-30)
The diffusion characteristics of water in polymer materials have been studied for a few decades. Several methods have been developed to provide water diffusion characteristics as a function of time, temperature, pressure, ...
Ionization and Scattering for Short-Lived Potentials
(Kluwer Academic Publishers; Springer Science+Business Media, 1999-06)
We consider perturbations of a model quantum system consisting of a single bound state and continuum radiation modes. In many problems involving the interaction of matter and radiation, one is interested in the effect of ...
Structure of 11Li in the cluster-orbital shell model for the 9Li+n +n system
(Elsevier, 1990-04)
The properties of 11Li are studied in detail in the cluster-orbital shell model assuming the structure of 9Li+n+n. The interactions acting between the constituent particles are carefully determined consistently with available ...
An Adaptively Refined Cartesian Mesh Solver for the Euler Equations
(Elsevier, 1993-01)
A method for adaptive refinement of a Cartesian mesh for the solution of the steady Euler equations is presented. The algorithm creates an initial uniform mesh and cuts the body out of that mesh. The mesh is then refined ...
A Spectral Element Basin Model for the Shallow Water Equations
(Elsevier, 1993-11)
A spectral element model is built for the shallow water equations in complex geometry. It is proved to be an efficient computational model in solving oceanic problems. In particular, the equatorial Rossby modon's reflection ...
Laser cavity mirror imperfections and reflectivity: A time‐dependent numerical approach
(The American Institute of Physics, 1995-01-16)
While the cleaving process used for semiconductor Fabry–Pérot lasers produces atomically abrupt mirrors, there is considerable interest in mirrors defined by etching. Depending on the etching process employed, disorder of ...
An integral method for mixing, chemical reactions, and extinction in unsteady strained diffusion layers
(Elsevier, 1991-02)
An integral method is presented for determining the evolution of molecular mixing, finite rate chemical reactions, and local extinction in diffusion layers under the effect of an unsteady strain rate. The partial differential ...
Two fluid acoustic modes and inhomogeneous cosmologies
(IOP Publishing Ltd, 1993-12-01)
The weak discontinuities that can propagate in a relativistic two fluid system are examined and expressions obtained for their speed of propagation. The acoustic speeds and discontinuity amplitudes are described by their ...
Existence of infinitely-many smooth, static, global solutions of the Einstein/Yang-Mills equations
(Springer-Verlag, 1993-01)
We prove the existence of infinitely-many globally defined singularity-free solutions, to the EYM equations with SU (2) gauge group. The solutions are indexed by a coupling constant, have distinct winding numbers, and their ...