Simulation of Flow and Heat Transfer of Mist/Air Impinging Jet on Grinding Work-Piece
作者: F. JiangHan WangYijun WangJianhua Xiang
刊名: Journal of Applied Fluid Mechanics, 2016, Vol.9 (3), pp.1339-1348
来源数据库: Directory of Open Access Journals
关键词: Mist/air impinging jetHeat transferDPMMist droplets trajectoryNumerical simulationGrinding zone cooling.
原始语种摘要: The numerical investigation is presented for flow and heat transfer on grinding work-piece with mist/air impinging jet by using DPM (discrete phase model) model. The tracks of the mist droplets show most of them are accumulated on the right surface of grinding zone, and can be influenced by the rotating speed of the grinding wheel, the position and the number of the jet nozzle. The mechanism model of enhance cooling by mist/air impinging jet is developed, which indicated the mist droplet is an key factor of affecting the heat transfer coefficient, and the increasing of mist droplet leads to significant enhancement of the cooling effect. The effects of the jet nozzle location, the nozzle diameter, and the nozzle number on flow and heat transfer coefficient are studied. The results show...
全文获取路径: DOAJ  (合作)

  • impinging 碰撞
  • transfer 转换
  • Transfer 转运牌汽车
  • grinding 
  • nozzle 喷嘴
  • cooling 冷却
  • enhancement 增强
  • coefficient 系数
  • greater 较大
  • trajectory 轨道