Abstract
The lattice Boltzmann method is used to simulate the oscillating-grid turbulence directly with the aim to reproduce the experimental results obtained in laboratory. The numerical results compare relatively well with the experimental data through determining the spatial variation of the turbulence characteristics at a distance from the grid. It is shown that the turbulence produced is homogenous quasi-isotropic in case of the negligible mean flow and the absence of secondary circulations near the grid. The direct numerical simulation of the oscillating-grid turbulence based on the lattice Boltzmann method is validated and serves as the foundation for the direct simulation of particle-turbulence interactions.
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Project supported by the Science Fund for Creative Research Groups of the National Natural Science Foundation of China (Grant No. 51621092), the National Natural Science Foundation of China (Grant No. 51579171), the Tianjin Program of Applied Foundation and Advanced-Technology Research (Grant No. 12JCQNJC04100) and TH-1A supercomputer.
Biography: Jin-feng Zhang (1978-), Female, Ph. D., Associate Professor
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Zhang, Jf., Zhang, Qh., Maa, JY. et al. Lattice Boltzmann simulations of oscillating-grid turbulence. J Hydrodyn 29, 68–74 (2017). https://doi.org/10.1016/S1001-6058(16)60718-7
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DOI: https://doi.org/10.1016/S1001-6058(16)60718-7