An Efficient Numerical Method for Singularly Perturbed Two Point Boundary Value Problems Exhibiting Boundary Layers

被引:13
|
作者
Reddy, N. Raji [1 ]
Mohapatra, Jugal [2 ]
机构
[1] Jyothishmathi Inst Technol & Sci, Dept Math, Karimnagar 505481, India
[2] Natl Inst Technol Rourkela, Dept Math, Rourkela 769008, India
来源
关键词
Singular perturbation problems; Thomas algorithm; Exponential fitting factor; Uniform convergence; FINITE-DIFFERENCE METHOD;
D O I
10.1007/s40009-015-0350-z
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In this paper an exponentially fitted finite difference method is presented for solving singularly perturbed two-point boundary value problems with the boundary layers. A fitting factor is introduced and the model equation is discretized by a finite difference scheme on an uniform mesh. Thomas algorithm is used to solve the tri-diagonal system. The stability of algorithm is investigated. It is shown that proposed technique provides first order accuracy independent of perturbation parameter. Linear and nonlinear problems are solved by proposed method and numerical results are presented to illustrate the present technique.
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页码:355 / 359
页数:5
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