Results 71 to 80 of about 281,967 (214)

ON FINITE DIFFERENCE SCHEMES FOR THE 3-D WAVE EQUATION USING NON-CARTESIAN GRIDS

open access: yes, 2013
In this paper, we investigate finite difference schemes forthe 3-D wave equation using 27-point stencils on the cubiclattice, a 13-point stencil on the face-centered cubic (FCC)lattice, and a 9-point stencil on the body-centered cubic(BCC) lattice.
Stefan Bilbao   +3 more
core   +1 more source

Numerical Investigation of Combined Buoyancy and Surface Tension Driven Convection in an Axi-Symmetric Cylindrical Annulus

open access: yesNonlinear Analysis, 2007
A numerical study is conducted to understand the effect of surface tension on buoyancy driven convection in a vertical cylindrical annular cavity filled with a low Prandtl number fluid.
M. Sankar, M. Venkatachalappa
doaj   +1 more source

Langrangian finite element and finite difference methods for poisson problems

open access: yes, 1974
The use of Lagrangian finite element methods for solving a Poisson problem produces systems of linear equations, the global stiffness equations. The components of the vectors which are the solutions of these systems are approximations to the exact ...
Whiteman, J R
core  

Finite difference method and finite volume method for solving navier-stokes equation in sea water movement [PDF]

open access: yes, 2013
This project proposed the Navier-Stokes equation of sea water modeling. The mathematical modeling consists of momentum , heat and salinity equations. The three parameters influence on sea water movement are momentum, temperature and salinity.
Mohamed, Nur Syahida
core  

Numerical Simulation of Potential Distribution in Grounding Systems Using the Finite Difference Matrix Operators Approach with Non-Uniform Mesh

open access: yesEnergies
In this paper, we introduce the development of the Finite Difference Matrix Operators (FDMO) algorithm for solving the three-dimensional (3D) electromagnetic problem governed by the Laplace–Poisson equation.
Xuan-Binh Nguyen   +2 more
doaj   +1 more source

Difference Schemes for Delay Parabolic Equations with Periodic Boundary Conditions

open access: yes, 2015
6th International Conference on Finite Difference Methods - Theory and Applications (FDM - T and A) -- JUN 18-23, 2014 -- Lozenetz, BULGARIAThe initial-boundary value problem for the delay parabolic partial differential equation with nonlocal conditions ...
Allaberen Ashyralyev   +3 more
core   +1 more source

Symmetrizable finite difference operators [PDF]

open access: yesMathematics of Computation, 1990
We introduce the notion of a symmetrizable finite difference operator and prove that such operators are stable. We then present some sufficient conditions for symmetrizability. One of these extends H.-O. Kreiss’ theorem on dissipative difference schemes for hyperbolic equations to a more general case with full (
openaire   +2 more sources

Conforming finite element methods for the clamped plate problem

open access: yes, 1975
Finite element methods for solving biharmonic boundary value problems are considered. The particular problem discussed is that of a clamped thin plate. This problem is reformulated in a weak, form in the Sobolev space Techniques for setting up conforming
Whiteman, J R, J. R. Whiteman
core   +1 more source

Optimized absorbing boundary conditions for the analysis of planar circuits using the finite difference time domain method [PDF]

open access: yes, 1993
It is shown that the description of absorbing boundary condition algorithms (ABCs) in terms of single incident plane waves does not provide sufficient information for choosing the best ABC for planar waveguide termination.
Paul, DL   +3 more
core   +1 more source

Some new finite difference inequalities arising in the theory of difference equations

open access: yesAdvances in Difference Equations, 2011
In this work, some new finite difference inequalities in two independent variables are established, which can be used in the study of qualitative as well as quantitative properties of solutions of certain difference equations.
Meng Fanwei, Feng Qinghua, Zhang Yaoming
doaj  

Home - About - Disclaimer - Privacy