Applied Mathematics and Mechanics (English Edition) ›› 2022, Vol. 43 ›› Issue (10): 1601-1614.doi: https://doi.org/10.1007/s10483-022-2913-7

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A high-order scheme based on lattice Boltzmann flux solver for viscous compressible flow simulations

Jian QIN1,2,3, Jie WU1,2,3, Chao MA1,2,3   

  1. 1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. Key Laboratory of Unsteady Aerodynamics and Flow Control, Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    3. Department of Aerodynamics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2022-03-19 Revised:2022-08-08 Published:2022-10-25
  • Contact: Jie WU, E-mail: wuj@nuaa.edu.cn
  • Supported by:
    the National Natural Science Foundation of China (No. 12072158), the Natural Science Foundation of Jiangsu Province (No. BK20191271), and the Research Fund of Key Laboratory of Computational Aerodynamics, AVIC Aerodynamics Research Institute (No. YL2022XFX0402)

Abstract: In this paper, a high-order scheme based on the lattice Boltzmann flux solver (LBFS) is proposed to simulate viscous compressible flows. The flux reconstruction (FR) approach is adopted to implement the spatial discretization. The LBFS is employed to compute the inviscid flux by using the local reconstruction of the lattice Boltzmann equation solutions from macroscopic flow variables. Meanwhile, a switch function is used in LBFS to adjust the magnitude of the numerical viscosity. Thus, it is more beneficial to capture both strong shock waves and thin boundary layers. Moreover, the viscous flux is computed according to the local discontinuous Galerkin method. Some typical compressible viscous problems, including manufactured solution case, lid-driven cavity flow, supersonic flow around a cylinder and subsonic flow over a NACA0012 airfoil, are simulated to demonstrate the accuracy and robustness of the proposed FR-LBFS.

Key words: high-order method, flux reconstruction, lattice Boltzmann flux solver (LBFS), viscous compressible flow

2010 MSC Number: 

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