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A lattice Boltzmann model for the generalized Burgers–Huxley equation

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  • Duan, Yali
  • Kong, Linghua
  • Zhang, Rui

Abstract

In this paper we develop a lattice Boltzmann model for the generalized Burgers–Huxley equation (GBHE). By choosing the proper time and space scales and applying the Chapman–Enskog expansion, the governing equation is recovered correctly from the lattice Boltzmann equation, and the local equilibrium distribution functions are obtained. Excellent agreement with the exact solution is observed, and better numerical accuracy is obtained than the available numerical result. The results indicate the present model is satisfactory and efficient. The method can also be applied to the generalized Burgers–Fisher equation and be extended to multidimensional cases.

Suggested Citation

  • Duan, Yali & Kong, Linghua & Zhang, Rui, 2012. "A lattice Boltzmann model for the generalized Burgers–Huxley equation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 391(3), pages 625-632.
    • Handle: RePEc:eee:phsmap:v:391:y:2012:i:3:p:625-632
    DOI: 10.1016/j.physa.2011.08.034
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    References listed on IDEAS

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    1. Javidi, M. & Golbabai, A., 2009. "A new domain decomposition algorithm for generalized Burger’s–Huxley equation based on Chebyshev polynomials and preconditioning," Chaos, Solitons & Fractals, Elsevier, vol. 39(2), pages 849-857.
    2. He, Ji-Huan, 2005. "Application of homotopy perturbation method to nonlinear wave equations," Chaos, Solitons & Fractals, Elsevier, vol. 26(3), pages 695-700.
    3. Lai, Huilin & Ma, Changfeng, 2009. "Lattice Boltzmann method for the generalized Kuramoto–Sivashinsky equation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 388(8), pages 1405-1412.
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    1. Lai, Huilin & Ma, Changfeng, 2014. "A new lattice Boltzmann model for solving the coupled viscous Burgers’ equation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 395(C), pages 445-457.
    2. Krivovichev, Gerasim V., 2018. "Linear Bhatnagar–Gross–Krook equations for simulation of linear diffusion equation by lattice Boltzmann method," Applied Mathematics and Computation, Elsevier, vol. 325(C), pages 102-119.
    3. Cosgun, Tahir & Sari, Murat, 2020. "Traveling wave solutions and stability behaviours under advection dominance for singularly perturbed advection-diffusion-reaction processes," Chaos, Solitons & Fractals, Elsevier, vol. 138(C).

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