Results 31 to 40 of about 80 (76)
Optimal Injection Operator and High Order Schemes for Multigrid Solution of 3D Poisson Equation
, 1999 We present a multigrid solution of the three dimensional Poisson equation with a fourth order 19-point compact finite difference scheme. Using a red-black ordering of the grid points and some geometric considerations, we derive an optimal scaled ...
core
Numerical solution of one-dimensional Burgers equation
, 1999 This paper presents finite-difference solution and analytical solution of the finite-difference approximations based on the standard explicit method to the one-dimensional Burgers equation which arises frequently in the mathematical modelling used to ...
Özdes, A, Bahadir, AR, Kutluay, S
core +1 more source
Preconditioned Krylov Subspace Methods for Solving Nonsymmetric Matrices from CFD Applications
, 1998 We conduct experimental study on the behavior of several preconditioned iterative methods to solve nonsymmetric matrices arising from computational fluid dynamics (CFD) applications.
Jun Zhang
core
, 1998 We investigate the use of sparse approximate inverse techniques in a multi-level block ILU preconditioner to design a robust and efficient parallelizable preconditioner for solving general sparse matrices.
Jun Zhang
core
Acceleration and Stabilization Properties of Minimal Residual Smoothing Technique in Multigrid
, 1998 We analyze the standard multigrid method accelerated by a minimal residual smoothing (MRS) technique. We show that MRS can accelerate the convergence of the slow residual components, thus accelerates the overall multigrid convergence.
Jun Zhang
core
, 2007 This is the user guide for Bruce's General Solver (BuGS). BuGS is a toolkit for solving single space dimensional, nonlinear systems of partial differential equations which are at most order one in time and order two in space.
Bruce Ayati
core
A Cost-Effective Multigrid Projection Operator
, 1996 A novel heuristic residual analysis is proposed to derive a computationally cost-effective residual projection operator in multigrid with the five-point Red-Black Gauss-Seidel relaxation for solving the two dimensional Poisson equation.
Jun Zhang
core
Повишаване на изчислителната скорост на ускорена схема за възрастово структуриран дифузионен модел
, 2011 Дойчин Бояджиев, Галена Пеловска - В статията се предлага оптимизиран алгоритъм, който е по-бърз в сравнение с по- рано описаната ускорена (модифицирана STS) диференчна схема за възрастово структуриран популационен модел с дифузия.
Boyadzhiev, Doychin, Pelovska, Galena
core
On Cyclic Reduction and Finite Difference Schemes
, 1999 We investigate a family of finite difference schemes for discretizing the two dimensional Poisson equation on both the standard and the reduced grids. We study the relation between the cyclic reduction method and the discretization schemes on different ...
Jun Zhang +2 more
core
, 2007 We employ multi-level minimal residual smoothing (MRS) as a pre-optimization technique to accelerate standard multigrid convergence. The MRS method is used to improve the current multigrid iterate by smoothing its corresponding residual before the latter
Jun Zhang
core