| 倪 雁,夏保琴,顾 磊.移动射流靶距对冲刷细砂特性影响的数值模拟*[J].水运工程,2024,(11):209-214 |
| 移动射流靶距对冲刷细砂特性影响的数值模拟* |
| Numerical simulation of influence of moving jet target distance on fine sand scouring characteristics |
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| DOI： |
| 中文关键词: moving jet target distance scouring fine sand numerical simulation |
| 英文关键词: |
| 基金项目:国家重点研发计划项目（2018YFC0407404）；国家自然科学基金项目（51709094）；江苏省科技成果转化专项资金项目（BA2016143） |
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| 中文摘要: |
| Regarding the problem that how to set jet target distance to improve scouring capacity and reduce energy consumption in engineering practice,we carry out a numerical simulation study.Taking fine sand with a median particle size of 0.13 mm as the research object,we build a moving jet scouring model,and verify the reliability of some parameters chosen by comparing with physical test outcome.Then we use this model to simulate vertical submerged jet scouring on fine sand,and analyze effects of target distance on scour depth,productivity and specific energy of jet.The results show that with the increase of moving jet target distance,scour depth first increases and then decreases.Sour capacity first increases and then decreases,while scour specific energy first decreases and then increases.An optimal target distance exists with limited energy consumption but high scour capacity. |
| 英文摘要: |
| 移动射流；靶距；冲刷；细砂；数值模拟 |
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