A numerical solution of the elasticity problem of settled of the wronkler ground with variable coefficients

2004 ◽  
Vol 150 (3) ◽  
pp. 821-831
Author(s):  
Ercan Çelik ◽  
Mustafa Bayram
Keyword(s):  
Numerical Solution ◽  
Variable Coefficients ◽  
Elasticity Problem

Geometric grid network and third-order compact scheme for solving nonlinear variable coefficients 3D elliptic PDEs

2018 ◽  
Vol 09 (06) ◽  
pp. 1850053 ◽  
Author(s):  
Navnit Jha ◽  
Venu Gopal ◽  
Bhagat Singh
Keyword(s):  
Numerical Solution ◽  
Numerical Solutions ◽  
Variable Coefficients ◽  
Compact Scheme ◽  
Elliptic Pdes ◽  
Elliptic Type ◽  
Third Order ◽  
Grid Network ◽  
High Order Finite Difference ◽  
Three Space

By using nonuniform (geometric) grid network, a new high-order finite-difference compact scheme has been obtained for the numerical solution of three-space dimensions partial differential equations of elliptic type. Single cell discretization to the elliptic equation makes it easier to compute and exhibit stability of the numerical solutions. The monotone and irreducible property of the Jacobian matrix to the system of difference equations analyses the converging behavior of the numerical solution values. As an experiment, applications of the compact scheme to Schrödinger equations, sine-Gordon equations, elliptic Allen–Cahn equation and Poisson’s equation have been presented with root mean squared errors of exact and approximate solution values. The results corroborate the reliability and efficiency of the scheme.

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