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首页> 外文会议>International Conference on Sustainable Energy, Environment and Information Engineering >Research on the Bionic Non-Smooth Nozzle for High-Pressure Jet Grouting Based on Computational Fluid Dynamics
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Research on the Bionic Non-Smooth Nozzle for High-Pressure Jet Grouting Based on Computational Fluid Dynamics

机译：基于计算流体动力学的高压喷射灌浆仿生非光滑喷嘴研究

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摘要

In the practical engineering, high-pressure jet grouting (HPJG) has been widely used for reinforcing the soil mass and preventing seepage in the many different fields. Nozzle is the crucial component for HPJG, its hydraulic characteristics determine the working efficiency of HPJG directly. The bionic non-smooth technology is applied to design the nozzle's internal structure. According to the computational fluid dynamics (CFD) to compare the hydraulic characteristics of the normal nozzle and the bionic non-smooth nozzle, comparing the values of impact forces of high-pressure cement-slurry jets impact on the soil mass surfaces ejected by them, the value of bionic non-smooth nozzle is 17.05 N bigger than the normal nozzle. The relevant results show that the bionic non-smooth nozzle has better hydraulic characteristics. In addition, the grooves with equal intervals on the inner walls make the nozzle with a non-smooth surface. Moreover, the opposite rotational vortexes in the grooves on the inner walls of the bionic non-smooth nozzle are the main reason for increasing efficiency and reducing energy consumption.
机译：在实际工程中，高压喷射灌浆（HPJG）已被广泛用于加强土壤质量并防止众多不同领域的渗漏。喷嘴是HPJG的重要组成部分，其液压特性直接确定了HPJG的工作效率。仿生非平滑技术适用于设计喷嘴的内部结构。根据计算流体动力学（CFD）来比较正常喷嘴和仿生非光滑喷嘴的水力特性，进行比较的土体表面上的高压水泥的浆料射流冲击的冲击力的喷射由它们的值，仿生非光滑喷嘴的值比普通喷嘴大17.05升。相关结果表明，仿生非光滑喷嘴具有更好的液压特性。另外，内壁上具有相等间隔的凹槽使得具有非光滑表面的喷嘴。此外，仿生非平滑喷嘴内壁上的凹槽中的相对旋转涡流是提高效率和降低能量消耗的主要原因。

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