摘要
本文采用颗粒随机轨道模型，并与ｋ－ε模型及应力代数模型相结合，对方形分离器内的三维气固两相流动进行了数值模拟，气相计算得到了与实验结果基本一致的湍流流场，两相计算得出了与实验基本符合的分离器分离效率曲线。计算结果表明，在方形分离器内的旋风流动计算中，ｋ－ε模型及应力代数模型均得到比较合理的结果，并与实验符合较好；两相流动的计算初步分析了方形分离器的分离性能及分离机理，得到对工程设计有指导意义的结论。
The particle stochastic trajectory model,integrating with a k-εturbulence model and algebraic Reynolds stress model,was employed to numerically simulate the three dimensional strongly swirling gas-particle turbulent flow in a square shaped separator.Agreement is achieved widely between the simulation results and the measured data in terms of gas velocity and separation efficiency.The separation mechanics and performence properties of the square shaped separator were analyzed generally by the simulation results of the gas-particle flows.The research results from this paper founded the basis of comprehensive modeling of three dimentional gas-particle flow in the square shaped separator,besides the results are used in optimum design and improvement of the square shaped separator.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1996年第2期252-256,共5页
Journal of Engineering Thermophysics
