Numerical Analysis of Flow Instability in the Water Wall of a Supercritical CFB Boiler with Annular Furnace
文献类型：期刊论文
| 作者 | Xie, B. B., Yang, D., Xie, H. Y., Nie, X. and Liu, W. Y.1 |
| 出版日期 | 2016 |
| 关键词 | supercritical CFB with annular furnace heat storage flow instability wall temperature numerical analysis linear-stability analysis |
| 中文摘要 | Supersonic cavity flows are characterized by compression and expansion waves, shear layer, and oscillations inside the cavity. For decades, investigations into cavity flows have been conducted, mostly with flows at zero pressure gradient entering the cavity in straight walls. Since cavity flows on curved walls exert centrifugal force, the features of these flows are likely to differ from those of straight wall flows. The aim of the present work is to study the flow physics of a cavity that is cut out on a curved wall. Steady and unsteady numerical simulations were carried out for supersonic flow through curved channels over the cavity with L/H = 1. A straight channel flow was also analyzed which serves as the base model. The velocity gradient along the width of the channel was observed to increase with increasing the channel curvature for both concave and convex channels. The pressure on the cavity floor increases with the increase in channel curvature for concave channels and decreases for convex channels. Moreover, unsteady flow characteristics are more dependent on channel curvature under supersonic free stream conditions. |
| 源URL | [http://ir.etp.ac.cn/handle/311046/113070]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science_期刊论文 |
| 作者单位 | 1.[Yang Ce 2.Wang Yingjun 3.Wei Longyu 4.Liu Yixiong] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China. [Lao Dazhong] Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China. [Tong Ding] China North Engine Res Inst, Tianjin 300405, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Xie, B. B., Yang, D., Xie, H. Y., Nie, X. and Liu, W. Y.. Numerical Analysis of Flow Instability in the Water Wall of a Supercritical CFB Boiler with Annular Furnace[J],2016. |
| APA | Xie, B. B., Yang, D., Xie, H. Y., Nie, X. and Liu, W. Y..(2016).Numerical Analysis of Flow Instability in the Water Wall of a Supercritical CFB Boiler with Annular Furnace.. |
| MLA | Xie, B. B., Yang, D., Xie, H. Y., Nie, X. and Liu, W. Y.."Numerical Analysis of Flow Instability in the Water Wall of a Supercritical CFB Boiler with Annular Furnace".(2016). |
入库方式： OAI收割
来源：工程热物理研究所
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