华中科技大学学报（自然科学版）2025，Vol.53Issue(7)：122-128,7.DOI:10.13245/j.hust.250652
超高转速高压燃油离心泵多工况性能试验研究
Experimental study on the multi-operating condition performance of ultra-high-speed and high-pressure fuel centrifugal pump
摘要
Abstract
In order to study the prediction accuracy and operational stability of energy characteristics of fuel centrifugal pumps during variable speed processes,an experimental analysis was conducted on an ultra-high speed and high-pressure fuel centrifugal pump,and the performance and outlet pressure pulsation characteristics were studied under different speeds and flow rates.Through experimental measurements and spectral analysis,the variations in head,efficiency,and pressure pulsation spectra with operating conditions were identified.The results indicate that the pump's performance can be approximated based on its design speed.However,the estimation error increases significantly at lower speeds.At 60%nd,the deviation in shutoff head reached a maximum of 4%,while the flow coefficient deviation at the point of maximum efficiency reached 20.41%.Under varying flow conditions,low flow rates exhibited broadband pressure pulsation characteristics,whereas high flow rates transitioned to a discrete spectrum dominated by blade frequency,with the maximum pulsation amplitude observed at 0.8QnBEP(flow coefficient at best efficiency point).As the rotational speed decreased,the pulsation amplitude at the outlet monitoring point progressively diminished.关键词
高压燃油离心泵/多工况/变转速/压力脉动/试验测试Key words
high-pressure fuel centrifugal pump/multi-operating condition/variable rotational speed/pressure pulsation/experiment measurement分类
能源科技引用本文复制引用
王凯,胡建斌,吴亮亮,申文博..超高转速高压燃油离心泵多工况性能试验研究[J].华中科技大学学报（自然科学版）,2025,53(7):122-128,7.基金项目
国家自然科学基金资助项目(51979124). （51979124）
