Infinitely smooth multiquadric RBFs combined high-resolution compact discretization for nonlinear ۲D elliptic PDEs on a scattered grid network

سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 60

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شناسه ملی سند علمی:

JR_CMDE-11-4_007

تاریخ نمایه سازی: 1 شهریور 1402

چکیده مقاله:

Multiquadric radial basis functions combined with compact discretization to estimate solutions of two dimensions nonlinear elliptic type partial differential equations are presented. The scattered grid network with continuously varying step sizes helps tune the solution accuracies depending upon the location of high oscillation. The radial basis functions employing a nine-point grid network are used to improve the functional evaluations by compact formulation, and it saves memory space and computing time. A detailed description of convergence theory is presented to estimate the error bounds. The analysis is based on a strongly connected graph of the Jacobian matrix, and their monotonicity occurred in the scheme. It is shown that the present strategy improves the approximate solution values for the elliptic equations exhibiting a sharp changing character in a thin zone. Numerical simulations for the convection-diffusion equation, Graetz-Nusselt equation, Schr¨odinger equation, Burgers equation, and Gelfand-Bratu equation are reported to illustrate the utility of the new algorithm.

نویسندگان

Navnit Jha

Department of Mathematics, South Asian University, Maidan Garhi, New Delhi-۱۱۰۰۶۸, India.

Shikha Verma

Department of Mathematics, South Asian University, Maidan Garhi, New Delhi-۱۱۰۰۶۸, India.

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  • V. Bayona, M. Moscoso, M. Carretero, and M. Kindelan, RBF-FD ...
  • S. Banei and K. Shanazari, On the convergence analysis and ...
  • D. Britz, Digital simulation in electrochemistry, Springer, Berlin, ۲۰۰۵ ...
  • R. Feng and J. Duan, High accurate finite differences based ...
  • A. I. Fedoseyev, M. J. Friedman, and E. J. Kansa, ...
  • J. H. Ferziger and M. Peric, Computational methods for fluid ...
  • P. Henrici, Discrete variable methods in ordinary differential equations, John ...
  • N. J. Higham, Accuracy and stability of numerical algorithms, SIAM, ...
  • L. Jianyu, L. Siwei, Q. Yingjian, and H. Yaping, Numerical ...
  • N. Jha and N. Kumar, A fourth-order accurate quasi-variable meshes ...
  • N. Jha and L. K. Bieniasz, A fifth (six) order ...
  • N. Jha and B. Singh, Fourth-order compact scheme based on ...
  • N. Jha and N. Kumar, An exponential expanding meshes sequence ...
  • A. Komech and E. Kopylova, Stationary Schro¨dinger equation, in Dispersion ...
  • H. Liu, B. Xing, Z. Wang, and L. Li, Legendre ...
  • M. Malekzadeh, S. Hamzehei-Javaran, and S. Shojaee, Improvement of numerical ...
  • W. F. Mitchell, A collection of ۲D elliptic problems for ...
  • R. K. Mohanty, G. Manchanda, and A. Khan, Operator compact ...
  • A. Mohebbi and M. Saffarian, Implicit RBF meshless method for ...
  • A. Mohsen, A simple solution of the Bratu problem, Comput. ...
  • A. D. Polyanin, Handbook of linear partial differential equations for ...
  • G. So¨derlind, I. Fekete, and I. Farag´o, On the zero-stability ...
  • G. I. Shishkin, and L. P. Shishkina, Difference methods for ...
  • M. Stynes, Steady-state convection-diffusion problems, Acta Numer., ۱۴ (۲۰۰۵), ۴۴۵–۵۰۸ ...
  • J. W. Thomas, Numerical partial differential equations: conservation laws and ...
  • C. M. T. Tien, N. Mai-Duy, C. D. Tran, and ...
  • R. S. Varga, Matrix Iterative Analysis, Springer, Berlin, ۲۰۰۰ ...
  • G. B. Wright and B. Fornberg, Scattered node compact finite ...
  • D. M. Young, Iterative solution of large linear systems, Academic ...
  • نمایش کامل مراجع