Numerical Simulation of the Concentration Field of Powder Stream in Coaxial Laser Cladding

摘要：

There are three main physical processing of energy, momentum and mass transference of powder stream in laser manufacture. This paper is focused on numerical simulation of concentration field of the powder stream from the nozzle. Carrying gas/powder two phases flow equations were established based on Euler model. Computer numerical simulation of concentration field in the powder stream was finished using FLUENT6.0 software. Digital particle image method (DPIV) was selected to measure the concentration field. 2D concentration field pattern and its parameters were obtained. Results show a good agreement between the theoretical simulation and the experiment data.

关键词： Laser manufacturing Powder stream Concentration field Simulation Computer

作者: Xi-chen YANG Xiao-shu JIN Nan YANG

作者单位: Laser Processing Center, Tianjin Polytechnic University, 300160,Tianjin, China

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）