摘要
应用Fluent软件对射流泵内部流动进行数值模拟,分析了喉嘴距这一重要结构参数对射流泵性能的影响。计算了2种不同面积比射流泵在不同喉嘴距下的性能参数,并对其效率曲线进行了比较。结果表明,喉嘴距为1倍喷嘴直径时,射流泵效率最高,以最高效率下降4%为标准,确定了射流泵最优喉嘴距范围为0.5～1.5倍喷嘴直径之间。
The interior flow-field of jet pump was simulated by FLUENT and the effect of the nozzle-to-throat clearance, which is one of the most important structure parameters, on the performance of jet pump was analyzed. The characteristics of jet pump with two different area ratios were calculated under the conditions of different nozzle-to-throat clearances. Comparison between the efficiency curves of jet pumps with various nozzle-to-throat clearances revealed that the maximum efficiency of the jet pump occurred when the nozzle-to-throat clearance is equal to the nozzle diameter. Under a guideline of declining 4% from the maximum efficiency point, the optimal scale of nozzle-to-throat clearance was found to locate between 0.5 to 1.5 times of the nozzle diameter.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2008年第1期35-38,共4页
Nuclear Power Engineering
基金
国家自然科学基金(50579060)资助
关键词
FLUENT
射流泵
喉嘴距
效率
FLUENT, Jet pump, Nozzle-to-throat Clearance, Efficiency
