人民长江2025，Vol.56Issue(6)：153-161,9.DOI:10.16232/j.cnki.1001-4179.2025.06.020
环形射流泵排泥效果及结构优化数值模拟
Numerical simulation of sediment discharge effect and structural optimization of annular jet pump
摘要
Abstract
In order to investigate the parameters affecting the performance of annular jet pumps and improve their sediment dis-charge capacity,a numerical simulation on the internal flow field was conducted using STAR-CCM+software,in which the VOF(Volume of Fluid)model and the Realizable k-ε turbulence model were used and the sediment phase was simulated by a shear-thinning non-Newtonian fluid.The results demonstrated that increasing the area ratio(defined as the throat cross-sectional area to the nozzle outlet area ratio)can significantly enhance the sediment discharge capacity of annular jet pumps.The nozzle in-stallation angle influences the energy loss of the pump,thereby affecting its sediment discharge performance.For the studied mod-el,when the area ratio was 12.15,the optimal nozzle installation angle was 32,and when the area ratio was increased to 25,the optimal angle was 28°.These findings provide valuable insights for the design of suction systems in large jet trenchers used in ma-rine engineering applications.关键词
环形射流泵/优化设计/喷嘴安装角/STARCCM+/面积比/回流区Key words
annular jet pump/optimization design/nozzle installation angle/STAR-CCM+/area ratio/recirculation zone分类
机械制造引用本文复制引用
周阳,钟圣杰,周秉乾,陈诺言..环形射流泵排泥效果及结构优化数值模拟[J].人民长江,2025,56(6):153-161,9.基金项目
国家自然科学基金项目(42006175) （42006175）
舟山市科技计划项目(2021C21025) （2021C21025）
