节点文献

障碍物和管壁导致火焰加速的三维数值模拟

Numerical Investigation on Three-dimensional Flame Acceleration Induced by an Obstacle and Tube Internal Walls

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 杨宏伟范宝春李鸿志

【Author】 YANG Hong wei,FAN Bao chun,LI Hong zhi (Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China)

【机构】 南京理工大学南京理工大学 江苏南京210094江苏南京210094江苏南京210094

【摘要】 基于K ε模型和改进的EBU Arrehnius燃烧模型 ,考虑了障碍物对流动的附加作用 ,通过修改方程的源项 ,建立了湍流加速火焰现象的理论模型。选用Simple格式 ,壁面边界层采用壁面函数法处理 ,模拟了障碍物和摩擦管壁在三维空间中导致火焰加速的现象 ,结果表明障碍物和管壁对火焰都有明显的加速作用 ,且障碍物的加速作用更明显 ,最后分析了导致火焰加速的机理

【Abstract】 Based on k ε turbulence model and an improved EBU Arrhenius combustion model,the theoretical model of flame acceleration by turbulence is established by modifying the source term in the equations.The additional influence of obstacle is considered.In this paper,SIMPLE algorithm is adopted to solve the governing equations.The wall function is chosen to deal with the boundary near the wall.The Phenomena that flame is accelerated by an obstacle and tube wall are investigated numerically.The results show that both obstacles and tube internal wall could accelerate the flame.The acceleration effect by an obstacle is more obvious.The mechanism of flame acceleration is explored in this paper too.

【关键词】 湍流燃烧障碍物数值模拟
【Key words】 turbulencecombustionobstaclenumerical simulation
【基金】 国家自然科学基金项目 ( 1983 2 0 3 0 )
  • 【文献出处】 爆炸与冲击 ,Explosion and Shock Waves , 编辑部邮箱 ,2001年04期
  • 【分类号】O647.2
  • 【被引频次】78
  • 【下载频次】324
节点文献中: 

本文链接的文献网络图示:

本文的引文网络