MEMORY EFFECT ANALYSIS USING PIECEWISE CUBIC B-SPLINE OF TIME FRACTIONAL DIFFUSION EQUATION

Autor: MADIHA SHAFIQ, FARAH AINI ABDULLAH, MUHAMMAD ABBAS, AHMED SM ALZAIDI, MUHAMMAD BILAL RIAZ
Rok vydání: 2022
Předmět:
Zdroj: Fractals. 30
ISSN: 1793-6543
0218-348X
DOI: 10.1142/s0218348x22402708
Popis: The purpose of this work is to study the memory effect analysis of Caputo–Fabrizio time fractional diffusion equation by means of cubic B-spline functions. The Caputo–Fabrizio interpretation of fractional derivative involves a non-singular kernel that permits to describe some class of material heterogeneities and the effect of memory more effectively. The proposed numerical technique relies on finite difference approach and cubic B-spline functions for discretization along temporal and spatial grids, respectively. To ensure that the error does not amplify during computational process, stability analysis is performed. The described algorithm is second-order convergent along time and space directions. The computational competence of the scheme is tested through some numerical examples. The results reveal that the current scheme is reasonably efficient and reliable to be used for solving the subject problem.
Databáze: OpenAIRE