Comparison of the LBM with the modified local Crank-Nicolson method solution of transient one-dimensional nonlinear Burgers' equation
by Ahmad Reza Haghighi; Shirin Pakrou
International Journal of Computing Science and Mathematics (IJCSM), Vol. 7, No. 5, 2016

Abstract: Burgers' equation is a simplified form of the Navier-Stokes equations that represents the nonlinear features of them. In this paper, the transient one-dimensional nonlinear Burgers' equation is solved using the lattice Boltzmann method (LBM). The results are compared with the modified local Crank-Nicolson method (MLCN) and exact solutions. An example, distinguished by initial condition, is solved using the LBM and the MLCN methods and the accuracy of these two methods at various Reynolds numbers are analysed. Also, the effects of different numbers of particle velocities on the accuracy of the LBM are evaluated. The results show that at higher Reynolds numbers the accuracy of the LBM is higher than the MLCN method and vice versa.

Online publication date: Tue, 01-Nov-2016

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