| 平面倾斜冲击射流场的数值分析 | |
| 陈庆光 ; 徐忠 ; 吴玉林 ; 张永建 ; CHEN Qing-Guang ; XU Zhong ; WU Yu-Lin ; ZHANG Yong-Jian | |
| 2010-06-08 ; 2010-06-08 | |
| 关键词 | 倾斜冲击射流 湍流模型 数值分析 流场结构 oblique impinging jet turbulence model numerical analysis flow field structure TK124 |
| 其他题名 | NUMERICAL ANALYSIS OF A PLANAR OBLIQUE IMPINGING JET FLOW FIELD |
| 中文摘要 | 采用SIMPLE算法和RNGk-ε湍流模型,对平面射流倾斜冲击平板的半封闭空间内的流场进行了数值分析。针对喷口宽度B=10mm、冲击高度H=2B和射流雷诺数Re=20000的流场,分别得到了三种射流倾角下的速度、流函数、压力和湍动能分布。计算结果表明,射流倾角的变化对流场结构具有显著的影响。当倾角减小时,左侧回流区变小,而右侧回流区变大,最大压力区和最大湍动能区都随着滞止点的左移向流场的左侧移动。; The SIMPLE algorithm and an RNG based k - ε turbulence model are used to numerically analyze the semi-confined flow field of a planar jet impinging obliquely on a flat plate. The velocity, stream function, pressure and turbulent Kinetic energy distributions are solved for three oblique impingement angles with nozzle width of B = 10 mm, plate-to-plate spacing of H = 2B and jet Reynolds number of Re = 20000. The numerical results show that the impinging jet flow field is significantly affected by the oblique impingement angle. As the oblique angle decreases, the size of the left side recirculation zone is smaller than that of the right one. The locations of the maximum pressure zone and the maximum turbulent Kinetic energy zone all move towards the left with the movement of the stagnation point. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/50312]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 陈庆光,徐忠,吴玉林,等. 平面倾斜冲击射流场的数值分析[J],2010, 2010. |
| APA | 陈庆光.,徐忠.,吴玉林.,张永建.,CHEN Qing-Guang.,...&ZHANG Yong-Jian.(2010).平面倾斜冲击射流场的数值分析.. |
| MLA | 陈庆光,et al."平面倾斜冲击射流场的数值分析".(2010). |
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