Chang Su1,2, Qiangqiang Zheng3,*, Wukun Zhao4
FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.5, pp. 947-960, 2020, DOI:10.32604/fdmp.2020.09676
Abstract In this research, the dynamics of wet spray nozzles with different geometries, used to accelerate shotcrete, are investigated on the basis of a suitable
three-dimensional mathematical model and related numerical method. Simulations have been conducted in the frame of the SIMPLEC algorithm. The k-ε
turbulence model has been used to account for turbulent effects. The study shows
that when the angle of the convergent section is less than 3°, it has a scarce effect
on the dynamics of the jet of shotcrete; with the increase of the convergence
angle, the shotcrete jet velocity decreases and the nozzle wear increases; when… More >
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