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Investigation on mechanism of critical cavitating flow in liquid jet pumps under operating limits
Long XP(龙新平); Yao H; Zhao JF(赵建福); Long XP(龙新平)
2009
发表期刊International Journal of Heat and Mass Transfer
卷号52期号:9-10页码:2415-2420
ISSN0017-9310
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.
关键词Jet Pump Cavitation Liquid-vapor Two-phase Flow Critical Flow Operating Limit
学科领域流体力学
DOI10.1016/j.ijheatmasstransfer.2008.11.018
收录类别SCI
语种英语
WOS记录号WOS:000264350900024
WOS研究方向Thermodynamics ; Engineering ; Mechanics
WOS类目Thermodynamics ; Engineering, Mechanical ; Mechanics
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/28763
专题国家微重力实验室
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.
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