Investigation on mechanism of critical cavitating flow in liquid jet pumps under operating limits
文献类型：期刊论文
| 作者 | Long XP(龙新平) ; Yao H; Zhao JF(赵建福); Long XP(龙新平)
|
| 刊名 | International Journal of Heat and Mass Transfer
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:9-10页码:2415-2420 |
| 通讯作者邮箱 | xplong@whu.edu.cn |
| 关键词 | Jet Pump Cavitation Liquid-Vapor Two-Phase Flow Critical Flow Operating Limit |
| ISSN号 | 0017-9310 |
| 通讯作者 | 龙新平 |
| 合作状况 | 国内 |
| 中文摘要 | The critical cavitating flow in liquid jet pumps under operating limits is investigated in this paper. Measurements on the axial pressure distribution along the wall of jet pumps indicate that two-phase critical flow occurs in the throat pipe under operating limits. The entrained flow rate and the distribution of the wall pressure upstream lowest pressure section does not change when the outlet pressure is lower than a critical value. A liquid-vapor mixing shockwave is also observed under operating limits. The wave front moves back and forth in low frequency around the position of the lowest pressure. With the measured axial wall pressures, the Mach number of the two-phase cavitating flow is calculated. It's found that the maximum Mach number is very close to I under operating limits. Further analysis infers a cross-section where Mach number approaches to I near the wave front. Thus, the liquid-vapor mixture velocity should reach the local sound velocity and resulting in the occurrence of operating limits. |
| 学科主题 | 流体力学 |
| 类目[WOS] | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Thermodynamics ; Engineering ; Mechanics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264350900024 |
| 公开日期 | 2009-12-24 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/28763]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 通讯作者 | Long XP(龙新平) |
| 推荐引用方式 GB/T 7714 | Long XP,Yao H,Zhao JF,et al. Investigation on mechanism of critical cavitating flow in liquid jet pumps under operating limits[J]. International Journal of Heat and Mass Transfer,2009,52(9-10):2415-2420. |
| APA | Long XP,Yao H,赵建福,&龙新平.(2009).Investigation on mechanism of critical cavitating flow in liquid jet pumps under operating limits.International Journal of Heat and Mass Transfer,52(9-10),2415-2420. |
| MLA | Long XP,et al."Investigation on mechanism of critical cavitating flow in liquid jet pumps under operating limits".International Journal of Heat and Mass Transfer 52.9-10(2009):2415-2420. |
入库方式： OAI收割
来源：力学研究所
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