Quadrature Method of Moments for Nanoparticle Coagulation and Diffusion in the Planar Impinging Jet Flow  

作　　者：于明州 林建忠 熊红兵 

机构地区：[1]The State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou 310027,China [2]China Jiliang University,Hangzhou 310018,China

出　　处：《Chinese Journal of Chemical Engineering》2007年第6期828-836,共9页中国化学工程学报（英文版）

基　　金：Supported by the Ministry of Science and Technology of China (No.2005CCA06900).

摘　　要：A computational model combining large .eddy simulation with quadrature moment method was em-ployed to study nanoparticle evolution in a confined impinging jet. The investigated particle size is limited in the transient regime, and the particle collision kernel was obtained by using the theory of flux matching. The simulation was validated by comparing it with the experimental results. The numerical results show coherent structure acts to dominate particle number intensity, size and polydispersity distributions, and it also induce particle-laden iet to be diluted by .the ambient.The evolution of particle dynarnics in.the impinging jet flow are strongly related to the Rey-nolds number and nozzle-to-plate distance, and their relationships were analyzed.把大旋涡模拟与照时刻方法相结合的一个计算模特儿被雇用在一口限制侵犯的喷气学习 nanoparticle 进化。调查粒子尺寸在短暂政体被限制，并且粒子碰撞核被使用流动匹配的理论获得。模拟被把它与试验性的结果作比较验证。协调结构扮演统治粒子数字紧张的数字结果表演，尺寸和多分散性分布，和它也导致粒子沉重的喷气被冲淡由周围。在侵犯的喷气流动的粒子动力学的进化是强烈，与雷纳兹有关，数字和 nozzle-to-plate 距离，和他们的关系被分析。

关 键 词：NANOPARTICLE COAGULATION impinging jet large eddy simulation quadrature moment method 

分 类 号：O358[理学—流体力学]