%0 Journal Article
%T 加力燃油离心泵关死点工况引射冷却分析<br>Analysis of ejection-cooling at the shut-off operating condition for a reheat fuel centrifugal pump
%A 范红雨
%A 陆奇志
%A 龚景松
%A 朴英
%J 清华大学学报（自然科学版）
%D 2016
%R 10.16511/j.cnki.qhdxxb.2016.22.029
%X 针对加力燃油离心泵关死点工况存在燃油温升高的问题, 采用从泵入口引入一小股旁路燃油引射冷却叶轮腔室的设计。运用Reynolds时均(RANS)方法, 结合剪切应力输运(SST)湍流模型和Rayleigh-Plesset空化模型, 对加力燃油离心泵引射冷却降温进行了分析。结果表明: 采用旁路燃油引射冷却叶轮腔室的设计, 可以有效解决加力燃油离心泵关死点工况燃油温升高的问题。采用引射装置的加力燃油离心泵, 在叶轮中心存在气心, 使加力燃油离心泵消耗的功率减小, 叶轮摩擦产生的热量也变小, 因此燃油温升降低。<br>Abstract：The high fuel temperature rise at the shut-off operating condition in a reheat fuel centrifugal pump is addressed by cooling the impeller by fuel flowing through a by-pass from the pump inlet. The ejection-cooling is analyzed using the Reynolds average Navier-Strokes (RANS) method with the shear stress transport (SST) turbulence model and the Rayleigh-Plesset cavitation model. The results show that the ejection-cooling design can reduce the high fuel temperature rise at the shut-off condition. The power consumption and the friction heat are both reduced in the reheat fuel centrifugal pump with the ejection-cooling device because of the vapor core region in the impeller central zone which reduces the fuel temperature rise.
%K 加力燃油离心泵
%K 关死点工况
%K 引射冷却
%K 数值分析
%K &lt
%K br&gt
%K reheat fuel centrifugal pump
%K shut-off operating condition
%K ejection-cooling
%K numerical analysis
%U http://jst.tsinghuajournals.com/CN/Y2016/V56/I6/661