基于CFD技术的5000 kW挖岩绞刀内部流动分析  

Analysis of internal flow in 5000 kW rock cutter based on CFD

作　　者：李章超[1] 杨正军[1] 刘俸麟 

机构地区：[1]中交天津港航勘察设计研究院有限公司,天津市疏浚工程技术企业重点实验室,天津300457

出　　处：《水运工程》2017年第8期31-35,共5页Port & Waterway Engineering

摘　　要：绞刀的吸入性能极大影响疏浚工程的施工效率,研究绞刀内的流动特性对提高绞刀吸入性能意义重大。采用雷诺时均纳维斯托克斯(RANS)湍流模型的计算流体动力学(CFD)方法,对绞刀刀臂处是否带有沟槽设计的2种结构形式绞刀内部流动进行数值模拟,对2款绞刀内部的流动特性进行对比分析,验证沟槽设计的合理性及优越性,为5 000 k W挖岩绞刀的优化设计提供技术支持。The suction performance of the cutter greatly affects the construction efficiency of the dredging project. It is great significance to study the internal flow characteristics in the cutter to improve its suction performance. We use the computational fluid dynamics（ CFD） method of the Reynolds-averaged Navier-stokes（ RANS） turbulence model to simulate the internal flow of the two kinds of cutter with or without groove design on the cutter blades,and carry out the comparison and analysis of the internal flow characteristics of the two kinds of cutter to verify the reasonable and excellence of the groove design, which can provide technical support to optimization design of 5 000 kW rock cutter.

关 键 词：挖岩绞刀 内部流动 数值模拟 计算流体动力学 CFD 

分 类 号：U616[交通运输工程—船舶及航道工程]