Method of lines for multi-dimensional coupled viscous Burgers’ equations via nodal Jacobi spectral collocation method

2021 ◽  
Author(s):  
Bashar Zogheib ◽  
Emran Tohidi ◽  
Haci Mehmet Baskonus ◽  
Carlo Cattani
Author(s):  
Phumlani G. Dlamini ◽  
Vusi M. Magagula

AbstractIn this paper, we introduce the multi-variate spectral quasi-linearization method which is an extension of the previously reported bivariate spectral quasi-linearization method. The method is a combination of quasi-linearization techniques and the spectral collocation method to solve three-dimensional partial differential equations. We test its applicability on the (2 + 1) dimensional Burgers’ equations. We apply the spectral collocation method to discretize both space variables as well as the time variable. This results in high accuracy in both space and time. Numerical results are compared with known exact solutions as well as results from other papers to confirm the accuracy and efficiency of the method. The results show that the method produces highly accurate solutions and is very efficient for (2 + 1) dimensional PDEs. The efficiency is due to the fact that only few grid points are required to archive high accuracy. The results are portrayed in tables and graphs.


Symmetry ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1439 ◽  
Author(s):  
Yu Huang ◽  
Mohammad Hadi Noori Skandari ◽  
Fatemeh Mohammadizadeh ◽  
Hojjat Ahsani Tehrani ◽  
Svetlin Georgiev Georgiev ◽  
...  

This article deals with a numerical approach based on the symmetric space-time Chebyshev spectral collocation method for solving different types of Burgers equations with Dirichlet boundary conditions. In this method, the variables of the equation are first approximated by interpolating polynomials and then discretized at the Chebyshev–Gauss–Lobatto points. Thus, we get a system of algebraic equations whose solution is the set of unknown coefficients of the approximate solution of the main problem. We investigate the convergence of the suggested numerical scheme and compare the proposed method with several recent approaches through examining some test problems.


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