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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (9): 625767-625767.doi: 10.7527/S1000-6893.2021.25767

• Special Topic of NNW Progress and Application • Previous Articles     Next Articles

Advances in numerical simulation of wind-blown sand

WANG Ping, ZHENG Xiaojing   

  1. Key Laboratory of Mechanics on Disaster and Environment in Western China, The Ministry of Education, Center for Particle-laden Turbulence, Lanzhou University, Lanzhou 730000, China
  • Received:2021-03-30 Revised:2021-05-10 Published:2021-05-24
  • Supported by:
    National Numerical Windtunnel Project; National Natural Science Foundation of China (92052202,12072138)

Abstract: Wind-blown sand in the atmospheric surface layer is a typical two-phase flow characterized by the splashing process as sand particles impacting the erodible surface bed, multi-field coupling among turbulent wind, electrostatic field and charged sand particles, and multiscale and trans-scale problem. Therefore, accurate simulation and prediction of wind-blown sand has been very challenging. In this paper, we review the research progresses obtained in the past 30 years, including mainly simulation of multi-field coupling of wind-blown sand and scale-coupled model of aeolian geomorphology based on Reynolds-Averaged Navier-Stokes (RANS) equations, and simulation of sand movement based on Large Eddy Simulation (LES) and high Reynolds number wall turbulence. Shortcomings of existing numerical simulation methods for aeolian sand movement and the directions worthy of further research are also discussed.

Key words: wind-blown sand, RANS, wall resolved LES, wall modeled LES, National Numerical Windtunnel Project

CLC Number: