| 林嘉伟,夏 铖,郭 涛,胡京招,史一帆.绞吸式挖泥船绞刀扰动吸入能力的数值分析*[J].水运工程,2025,(2):203-210 |
| 绞吸式挖泥船绞刀扰动吸入能力的数值分析* |
| Numerical analysis of suction capacity of suction dredger with reamer disturbance |
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| DOI： |
| 中文关键词: 绞吸式挖泥船 绞刀 颗粒跟踪 单向流-固粒耦合 |
| 英文关键词:cutter suction dredger reamer particle tracking unidirectional flow-solid particle coupling |
| 基金项目:中交疏浚技术装备国家工程研究中心科研项目（2018.10.SD.30） |
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| 中文摘要: |
| 为了研究绞吸式挖泥船绞刀以不同转速和横移速度工作时其流场分布及颗粒运动轨迹，本文对某型绞刀的挖掘过程进行单向的流体-固粒耦合数值模拟。使用欧拉描述求解的流场，使用拉格朗日描述对土颗粒进行追踪，得到该绞刀相应工况下的流场分布规律和颗粒运动轨迹。结果表明：当转速30 r/min和横移速度0.50 m/s时，绞刀流场最稳定，颗粒吸入效率更高。本文的研究在理解绞刀工作原理、优化切削效果等方面具有一定参考价值，可以为绞吸式挖泥船绞刀优化施工及未来推广提供参考，从而在实际应用中更好地满足工程需求。 |
| 英文摘要: |
| To study the flow field distribution and particle trajectory of reamer for a cutter suction dredger working at different rotational speeds and traversing velocities.In this paper,a unidirectional fluid-solid particle coupling numerical simulation of the excavation process of a certain type of reamer is carried out.The flow field are solved using the Eulerian description and the soil particles are tracked using the Lagrangian description to obtain the flow field distribution pattern and particle motion trajectories for the corresponding operating conditions of this reamer.The results show that when the rotational speed is 30 r/min and the traverse speed is 0.50 m/s,the reamer flow field is most stable and particle suction efficiency is higher.The research in this paper has certain reference value in understanding the working principle of the reamer,optimizing the cutting effect and other aspects.The research results can provide reference for the optimized construction and future promotion of the reamer for cutter suction dredgers,so as to better meet the engineering needs in practical applications. |
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