中山大学学报（自然科学版）（中英文）2024，Vol.63Issue(4)：88-96,9.DOI:10.13471/j.cnki.acta.snus.ZR20240058
基于直接数值模拟的压力容器入口射流湍流模型评价
Assessment of jet turbulence model of pressure vessels inset pipe based on direct numerical simulation
摘要
Abstract
The open-source software Nek5000,based on the spectral element method,was used to conduct direct numerical simulation(DNS)of the pressure vessel inset pipe.A simplified 1/3 scale pressure vessel with a main pipe Re of 63 700,a downcomer section Re of 14 014,and a flowing me-dium of sodium iodide solution were used for the simulations.Turbulent statistics were conducted on common physical quantities,leading to the construction of a highly accurate turbulent flow database.Fluent was used to conduct an adaptive assessment of common wall functions and turbulent models,with assessment criteria based on velocity,turbulent kinetic energy,and turbulent viscosity.The find-ings indicate that the Stress-ω model is optimal for the rising section,whereas the Standard k-ω model is preferable for the downcomer section.关键词
压力容器/射流/直接数值模拟/湍流模型/壁面函数/评价Key words
pressure vessel/jet/DNS/turbulence model/wall function/assessment分类
能源科技引用本文复制引用
孙宇蒙,李捷,魏宗岚,艾哲伦,苗恒,邓坚..基于直接数值模拟的压力容器入口射流湍流模型评价[J].中山大学学报（自然科学版）（中英文）,2024,63(4):88-96,9.基金项目
国家自然科学基金(12075111) （12075111）
