| 颗粒粒径和气载比的变化对气固两相湍流调制作用影响的初步比较 | |
| 刘毅 ; 燕小芬 ; 王淼 ; 王希麟 ; Liu Yi ; Yan Xiao Fen ; Wang Miao ; Wang Xi Lin | |
| 2010-07-15 ; 2010-07-15 | |
| 会议名称 | 第七届全国实验流体力学学术会议论文集 ; Proceedings of the Seventh China National Conference on Experimental Fluid Mechanics ; 第七届全国实验流体力学学术会议 ; The Seventh China National Conference on Experimental Fluid Mechanics ; 中国河北北戴河 ; CNKI ; 中国力学学会（CSTAM） |
| 关键词 | 两相流 湍流度 粒径 气载比 CTI Two-phase flow turbulent intensity particle diameter particles' volume loading ratio CTI O359.1 |
| 其他题名 | Preliminary Comparison between the Effect of Changing the Particle Diameter and the Effect of Changing the Particles' Mass Loading Ratio on the Turbulent Modulation of Gas-solid Flow |
| 中文摘要 | 采用PDPA设备测量,给出了气固两相圆湍射流中,在射流喷口X/D<25的区域内,气相湍流度沿流向轴线的分布。实验采用了粒径为250微米和75微米的铜粉,颗粒的体积气载比为0.139%和0.29%。初步统计、分析比较了在相同气载比时改变颗粒粒径对气相湍流度的调制作用和在相同颗粒粒径时改变气载比对气相湍流度的调制作用。发现气载比的改变对湍流调制作用更大些。; PDPA equipment is used to measure the turbulent intensity of fluid phase of two-phase turbulent jet flow along the axial direction in the filed of X/D<25.Copper beads whose diameter are 250μm and 75μm are used in the experiment.The particles' volume concentration are 0.139%and 0.29%.The effect of changing the particle diameter on the turbulent modulation of the fluid phase at the same particles' volume loading ratio is compared with the effect of changing the paricles' volume loading ratio on the turbulent modulation of fluid phase at the same particle diameter according to the experimental data.The conclusion given by comparing is that the effect of changing the particle volume loading ratio on the turbulent modulation is greater.; 国家自然科学基金资助项目(资助编号:50576046) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 会议论文 |
| 源URL | [http://hdl.handle.net/123456789/66963]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 刘毅,燕小芬,王淼,等. 颗粒粒径和气载比的变化对气固两相湍流调制作用影响的初步比较[C]. 见:第七届全国实验流体力学学术会议论文集, Proceedings of the Seventh China National Conference on Experimental Fluid Mechanics, 第七届全国实验流体力学学术会议, The Seventh China National Conference on Experimental Fluid Mechanics, 中国河北北戴河, CNKI, 中国力学学会（CSTAM）. |
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