长江科学院院报2024，Vol.41Issue(11)：102-108,7.DOI:10.11988/ckyyb.20230576
相向对撞壁面射流分区及扩展数值模拟
Numerical Simulation of the Regional Division and Expansion of Opposed Wall Jet
摘要
Abstract
In order to reveal the characteristics of radial and vertical jets in the opposite wall jet,renormalization group k-ε model is adopted to simulate complex three-dimensional opposed jet.The partition structure and expan-sion rate of radial and vertical jets are analyzed.The influences of initial Reynolds number and nozzle distance on jet expansion rate are discussed.The results show that radial jet and vertical jet have similar regional division,however,vortices in different directions formed in the flow field have different influence ranges.The initial Reynolds number has no obvious effect on the expansion rate of the radial jet.The nozzle distance has a significant effect on the ex-pansion rates of radial and vertical jets.The larger the nozzle distance is,the larger the expansion rates of the radial and vertical jets are.Meanwhile,the nozzle distance has a certain influence on the jet development.Near nozzle spacing shortens the time for jet to reach the maximum velocity point,and speeds up the development process.关键词
相向射流/壁面射流/射流分区/射流扩展Key words
opposed jet/wall jet/jet region division/jet expansion分类
数理科学引用本文复制引用
袁浩,梁浩然,谢春航,胡瑞昌..相向对撞壁面射流分区及扩展数值模拟[J].长江科学院院报,2024,41(11):102-108,7.基金项目
重庆市自然科学基金项目(cstc2021jcyj-msxmX1175) （cstc2021jcyj-msxmX1175）
重庆交通大学校内科学基金课题(F1220084) （F1220084）
