A lattice Boltzmann approach utilizing hybrid lattices for accurate simulation of high-speed transonic (TS) flows is presented in this study. Single-layer lattice models, such as D3Q19, are computationally efficient with low numerical dissipation, but are limited to simulate weakly compressible flows within subsonic Mach regime. Multilayer lattice models, such as D3Q33, are capable of simulating thermal and high-speed compressible flows in TS Mach regime, but suffer from a higher numerical dissipation and higher computational cost. To take full advantages of these two types of lattices, a simulation domain is divided into two regions, high-subsonic (HS) flow regions to be solved by single-layer lattices and TS flow regions to be solved by multilayer lattices. The interface connecting the HS and TS flow regions are represented by double-sided surfels to realize smooth flow transition and ensure satisfaction of fundamental conservation laws. The hybrid lattice Boltzmann approach is stable and robust, and it allows multiple HS/TS flow regions with arbitrary shapes. Extensive validation studies demonstrate that the proposed approach is capable of obtaining accurate aerodynamic prediction of flows with a wide range of Mach numbers, and preserving the low numerical dissipation advantage of single-layer lattices in aeroacoustic computations.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Hybrid Lattice Boltzmann Approach for Simulation of High-Speed Flows


    Beteiligte:
    Li, Wende (Autor:in) / Wang, Junye (Autor:in) / Gopalakrishnan, Pradeep (Autor:in) / Li, Yanbing (Autor:in) / Zhang, Raoyang (Autor:in) / Chen, Hudong (Autor:in)

    Erschienen in:

    AIAA Journal ; 61 , 12 ; 5548-5557


    Erscheinungsdatum :

    2023-08-29


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Lattice Boltzmann Simulation for Supersonic/Hypersonic Compressible Flows

    Qiu, Ruofan / You, Yancheng / Zhu, Chengxiang et al. | AIAA | 2017


    EVALUATION OF A HYBRID BOLTZMANN-CONTINUUM METHOD FOR HIGH SPEED NONEQUILIBRIUM FLOWS

    Burt, J. / Deschenes, T. / Boyd, I. et al. | British Library Conference Proceedings | 2010


    Numerical Simulation of Separated Flows Using Entropic Lattice Boltzmann Method

    Rizvi, Syed A. / Thantanapally, Chakradhar / Arcidiacono, Salvatore et al. | TIBKAT | 2023


    Numerical simulation of separated flows using entropic lattice Boltzmann method

    Rizvi, Syed A. / Thantanapally, Chakradhar / Arcidiacono, Salvatore et al. | AIAA | 2023


    Evaluation of a Hybrid Boltzmann-Continuum Method for High-Speed Nonequilibrium Flows

    Burt, Jonathan M. / Josyula, Eswar / Deschenes, Timothy R. et al. | AIAA | 2011