|
|||||
|
|
| 均匀各向同性湍流中颗粒所见被动标量的数值研究 | |
| 引用本文： | 刘亚明,柳朝晖,郑楚光. 均匀各向同性湍流中颗粒所见被动标量的数值研究[J]. 燃烧科学与技术, 2011, 17(1): 35-40 |
| 作者姓名： | 刘亚明 柳朝晖 郑楚光 |
| 作者单位： | 1. 广东电网公司电力科学研究院,广州,510080 2. 华中科技大学煤燃烧国家重点实验室,武汉,430074 |
| 基金项目： | 国家自然科学基金资助项目，教育部新世纪优秀人才计划资助项目 |
| 摘 要： | 对均匀各向同性湍流中惯性颗粒所见被动标量的统计特性进行了数值模拟研究,探讨了颗粒惯性的差异对统计结果的影响.结果表明,颗粒所见流体标量的自相关特性随颗粒惯性的增加而单调减少;颗粒所见流体标量脉动和耗散率随颗粒惯性的变化呈现出复杂的变化行为,在St=1.0附近分别达到最小和最大值,其原因是St=1.0的临界颗粒聚集于低涡... |
| 关 键 词： | 被动标量 惯性颗粒 非等温气固两相流 直接数值模拟 |
Numerical Investigation of Passive Scalar Seen by Inertial Particle in Homogeneous Isotropic Turbulence |
|
| LIU Ya-ming,LIU Zhao-hui,ZHENG Chu-guang. Numerical Investigation of Passive Scalar Seen by Inertial Particle in Homogeneous Isotropic Turbulence[J]. Journal of Combustion Science and Technology, 2011, 17(1): 35-40 | |
| Authors: | LIU Ya-ming LIU Zhao-hui ZHENG Chu-guang |
| Affiliation: | LIU Ya-ming1,LIU Zhao-hui2,ZHENG Chu-guang2(1.Electric Power Research Institute,Guangdong Power Grid Corporation,Guangzhou 510080,China,2.State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China) |
| Abstract: | The statistical properties of passive scalar in homogeneous isotropic turbulence seen by inertial particle were studied by direct numerical simulation.The influence of particle inertia on statistical results was discussed.The results show that the self-correlation of scalar seen by particle decreases monotonously with the increase of particle inertia;that the variance and dissipation rate of scalar seen by particle display complicated behavior with the change of St number of particle and reach the minimal a... |
| Keywords: | passive scalar inertial particle non-isothermal gas particle flow direct numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |