摘要
为解决某型齿轮泵在初样设计中出现的严重汽蚀问题,对齿轮泵汽蚀机理进行分析,并用排除法找出了汽蚀原因。以进口流道改进设计为突破口,结合流体仿真软件,通过齿轮泵内流域空化程度和流量波动的仿真分析,对进口流道进行设计优化,以此开展减轻齿轮泵附着汽蚀的研究。提出在齿轮泵设计时,应充分考虑流道结构对附着汽蚀的影响,并结合流体仿真软件对进口流道进行设计修正,尽量避免附着汽蚀现象的产生。
To solve the problems of serious cavitation in the design of prototype sample, cavitation mecha-nism was analyzed and causes were found out by deduction. Taking inlet channel improved design as the breakthrough, combining with Pumplinx fluid simulation software, inlet flow channel was optimized through simulation analysis of cavitation degree in the gear pump and flow fluctuation to study how to alleviate the impact of cavitation to the gear pump. It is proposed that in the design of gear pump, the impact of flow channel on cavitation should be considered and the inlet flow channel could be modified by simulation soft-ware to avoid cavitation.
出处
《燃气涡轮试验与研究》
北大核心
2014年第4期39-41,共3页
Gas Turbine Experiment and Research
关键词
齿轮泵
附着汽蚀
进口流道
仿真修正
排故
gear pump
inlet attached cavitation
flow channel
simulation correction
troubleshooting
作者简介
何渊博（1979-），男，陕西西安人，工程师，从事航空发动机燃油泵研究。
