摘要
以CFD软件FLUENT为工具,采用RNGk-ε湍流模型和PISO算法,对罗茨鼓风机内部气流流场进行了可压缩非定常流动的数值模拟,数值模拟与理论分析的对比结果验证了数值分析方法具有良好的准确度和可靠性。结果表明,基于动网格技术的风机内部流场的动态数值模拟,能较真实地反映风机内部湍流流动的流场分布和气流脉动的特征规律。
Based on CFD software FLUENT,RNG k-ε turbulence model and PISO algorithm were adopted to simulate the inside flow of roots blower under the compressible and unsteady condition.The result of numerical simulation was contrasted with computing result of the theoretical analysis to validate the better accuracy and reliability of numerical analysis method.The result showed that the dynamic numerical simulation of internal flow field based on dynamic mesh technique could reflect truly the distribution of internal turbulent flow and the characteristic of air flow fluctuation.
出处
《风机技术》
2010年第5期15-18,27,共5页
Chinese Journal of Turbomachinery
基金
陕西省教育厅产业化项目(04JC21)
陕西省重点实验室项目(09JS032)
西安市科技局
创新支撑计划-产学研合作项目(X06039)
关键词
罗茨鼓风机
流场
数值分析方法
roots blower
flow field
numerical analysis method
