Three-dimensional interface structures and characteristics in a stratified gas-liquid pipe flow
文献类型：期刊论文
| 作者 | Hou LT(侯林彤); Yang M(杨猛) ; Wang LS(王黎松); Liu S(刘硕); Xu JY(许晶禹)
|
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2023-08-05 |
| 卷号 | 277页码:118861 |
| ISSN号 | 0009-2509 |
| 关键词 | Stratified flow Acceleration pressure drop Nonflat assumption Liquid height Interface characteristics |
| DOI | 10.1016/j.ces.2023.118861 |
| 英文摘要 | In this study, the air-water flow in a pipe with a diameter of 100 mm was tested to investigate the threedimensional (3D) interfacial characteristics of gas-liquid stratified flow in horizontal and slightly inclined pipes. The gas-liquid stratified flow interface exhibited a nonflat phenomenon (concave or convex). In particular, this phenomenon was verified by the transformation of the interface shape when the gas-liquid ratio exceeded 200 and 5 in the horizontal and inclined pipes, respectively. Compared with the flow in the horizontal pipe, the liquid holdup gradually decreased with an increase in the inclination angle in the downward stratified flow, and liquid height changes at the center was slight; however, the convex interface shape was obvious. In addition, the interface exhibited regular fluctuations in the flow direction under fixed operating conditions. Therefore, the hypothesis of a nonflat interface for stratified flow was proposed based on the experimental phenomena, and the interface shape function and flow equations were constructed to predict the degree of interface bending and critical conditions for gas-liquid stratified flow by analyzing the theoretical and influencing factors. The acceleration pressure drop was introduced to quantitatively characterize interfacial fluctuations in the flow direction; therefore, a modified model for nonflat stratified flow was developed. The proposed model could characterize the interface features in both the cross-sectional and flow directions of the pipe and provided a solution for the 3D interface of stratified flow. A comparison with the experimental results revealed that the proposed model performed the prediction satisfactorily. By solving the proposed model, the interfacial information in the pipe cross section and flow direction can be effectively predicted. |
| 分类号 | 二类 |
| WOS研究方向 | Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:001001452700001 |
| 资助机构 | National Natural Science Foundation of China [12102436] |
| 其他责任者 | Liu, S ; Xu, JY (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China. ; Liu, S ; Xu, JY (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92388]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.{Hou Lin-tong, Yang Meng, Wang Li-song, Liu Shuo, Xu Jing-yu} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 2.{Hou Lin-tong, Yang Meng, Wang Li-song, Liu Shuo, Xu Jing-yu} Chinese Acad Sci Inst Mech Beijing 100190 Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou LT,Yang M,Wang LS,et al. Three-dimensional interface structures and characteristics in a stratified gas-liquid pipe flow[J]. CHEMICAL ENGINEERING SCIENCE,2023,277:118861. |
| APA | 侯林彤,杨猛,王黎松,刘硕,&许晶禹.(2023).Three-dimensional interface structures and characteristics in a stratified gas-liquid pipe flow.CHEMICAL ENGINEERING SCIENCE,277,118861. |
| MLA | 侯林彤,et al."Three-dimensional interface structures and characteristics in a stratified gas-liquid pipe flow".CHEMICAL ENGINEERING SCIENCE 277(2023):118861. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。