摘要
综合应用代数Reynolds应力模型和流体相脉动速度大小和方向均具有随机性的颗粒相随机轨道模型 ,对旋流燃烧室内有直流射流与旋转射流相互作用的气 固两相湍流流动进行了数值模拟 .得到的气相轴向与切向速度和轴向脉动速度均方根值分布以及颗粒相轴向总质量流通量和轴向与切向速度分布与实验基本相符合 ,并比对气相湍流采用k ε模型的相应计算结果有较明显的改进 .
The algebraic Reynolds stress model (ASM) and the particle stochastic trajectory model were jointly used in this paper. The particle stochastic trajectory model accounted for random fluctuations both in magnitude and direction of the instantaneous gas velocity. The gas-particle turbulent flow under the interactions between swirling and non-swirling jets in a swirl combustor was numerically simulated. The gas axial and tangential velocities, the root mean square of gas axial fluctuating velocity, the particle total axial mass flux, and the particle axial and tangential velocities were obtained. They agreed with the measured data and were obviously improved over the results obtained by using the k-Ε model for the gas turbulence.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2004年第9期1434-1440,共7页
CIESC Journal
基金
国家自然科学基金资助项目 (No 5 0 1760 2 6)~~
