Assesment of six turbulence models for pin fin arrays of blade trailing edge

摘要：

　　For computational fluid dynamics(CFD),turbulence model selection counts much and highly relies on personal experience.The current study focuses on studying narrow impingement and pin fin arrays by means of time averaged Navier-Stokes simulations.Six turbulence models,i.e.,explicit algebraic Reynolds stress model,linear eddy viscosity models and v2f model are explored jointly with k-ε and k-ω platforms.The main object of the work is to study numerical performance and accuracy of models when applied in the simulation of blade pin fin arrays.Results from numerical simulations are compared among them and with experimental datas available in the literature.Comparisons are performed in terms of mean velocities and Reynolds stress and global parameters,i.e.,the Nusselt number.Meanwhile,simulation stability and cost are considered when assessing these turbulence models.

关键词： CFD Numerical modelling RANS Turbulence model Pin fin arrays

作者: Weihong Li Jing Ren Hongde Jiang

作者单位: Gas turbine institute,Tsinghua University,Beijing,100084,China

会议类型: 国际会议

会议名称: The 5th International Symposium on Jet Propulsion and Power Engineering(第五届喷气推进与动力工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-11

在线出版日期: 2014-09-15（万方平台首次上网日期，不代表论文的发表时间）