摘要
建立了喷射器湍流混合模型,利用商用流体力学软件Fluent6对不同结构的喷射器进行了模拟研究,从微观尺度考察喷射器的混合特性,得到了不同条件下喷射器完成湍流微观混合所需要的距离,并利用3个自定义的量纲为1数与雷诺数结合来描述喷射器的微观混合性能。结果显示,利用这些参数可以较好地表示喷射器的微观混合,并利用模拟结果回归了各准数之间的函数关系。
The turbulent mixing model was established for the research on micro-mixing characteristics in ejectors. Several ejectors of different configurations were studied by using the commercial CFD software Fluent 6, and the distances needed for finishing the micro-mixing under different conditions were obtained. Three user-defined dimensionless parameters and Reynolds number were used to describe the micro-mixing performance in ejectors. The results showed that the micro-mixing in ejectors could be described well by using these parameters, and the functional expressions of these parameters were obtained by using the CFD simulation results.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2009年第5期760-763,共4页
Chemical Industry and Engineering Progress
关键词
喷射器
湍流
混合
计算流体力学
ejector
turbulent flow
mixing
computational fluid dynamics （CFD）
