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转子径距比对燃料电池气体循环泵性能的影响

杨悦民 张志宇 李龙 刘建峰 黎义斌

杨悦民,张志宇,李龙,等.转子径距比对燃料电池气体循环泵性能的影响[J].航空动力学报,2022,37(9):1970‑1978. doi: 10.13224/j.cnki.jasp.20210348
引用本文: 杨悦民,张志宇,李龙,等.转子径距比对燃料电池气体循环泵性能的影响[J].航空动力学报,2022,37(9):1970‑1978. doi: 10.13224/j.cnki.jasp.20210348
YANG Yuemin,ZHANG Zhiyu,LI Long,et al.Influence of rotor diameter‑distance ratio on performance of fuel cell gas circulating pump[J].Journal of Aerospace Power,2022,37(9):1970‑1978. doi: 10.13224/j.cnki.jasp.20210348
Citation: YANG Yuemin,ZHANG Zhiyu,LI Long,et al.Influence of rotor diameter‑distance ratio on performance of fuel cell gas circulating pump[J].Journal of Aerospace Power,2022,37(9):1970‑1978. doi: 10.13224/j.cnki.jasp.20210348

转子径距比对燃料电池气体循环泵性能的影响

doi: 10.13224/j.cnki.jasp.20210348
基金项目: 

温州市科技计划项目 G20190017

甘肃省自然科学基金 20JR5RA452

详细信息
    作者简介:

    杨悦民(1995-),男,硕士生,主要从事气体循环泵气动性能研究。

    通讯作者:

    黎义斌(1977-),男,教授、博士生导师,博士,主要从事流体机械流动理论方面的研究。E⁃mail:liyibin58@163.com

  • 中图分类号: V219

Influence of rotor diameter‑distance ratio on performance of fuel cell gas circulating pump

  • 摘要:

    为了揭示径距比对凸轮式气体循环泵的气动性能的影响规律,通过坐标变换推导了3叶的圆弧⁃渐开线⁃圆弧转子型线方程,建立6种不同径距比的气体循环泵模型进行对比分析。采用重整化k⁃ε(RNG k⁃ε)湍流模型对转子腔内部进行三维非定常数值计算,结合动网格技术分析转子径距比对气体循环泵流量特性、转子腔速度分布的影响规律,并与试验结果进行对比。结果表明:转子径距比对气体循环泵性能影响较为明显,随着转子径距比由1.34增大到1.45,泵出口平均流量与瞬时流量脉动呈上升趋势,且在1.38~1.40时变化较为明显,平均流量增大了0.001 833 m3/s(15.8%);转子径距比在1.38~1.40时,转子受力较好,对转子径向激励力分量Fx的抑制较为明显,对转子径向激励力分量Fy的影响不显著;随径距比变化,转子腔内涡量分布变化较为明显,转子径距比在1.40时,转子腔内涡量分布较小,有效抑制了气体回流。

     

  • 图 1  圆弧⁃渐开线⁃圆弧型转子型线

    Figure 1.  Arc⁃gradient⁃round arc rotor line

    图 2  转子径距比示意图

    Figure 2.  Schematic diagram of rotor diameter⁃distance ratio

    图 3  多叶转子三维模型

    Figure 3.  Three⁃dimensional model of leafy rotor

    图 4  不同径距比的容积利用系数

    Figure 4.  Volume utilization coefficient for different diameter‑distance ratios

    图 5  计算流体域网格图

    Figure 5.  Computational fluid domain grid diagram

    图 6  气体循环泵试验台

    Figure 6.  Gas circulating pump experiment table

    图 7  气体循环泵模型装配图

    Figure 7.  Assembly diagram of gas circulating pump model

    图 9  径距比与流量脉动强度及出口平均流量的关系曲线

    Figure 9.  Relationship curve between the diameter⁃distance ratio and the volume flow pulsation strength and the average outlet volume flow

    图 12  不同径距比下转子径向激励力分量 Fx脉动曲线

    Figure 12.  Fx pulsation curve of the radial excitation force component of the rotor under different diameter‑distance ratios

    图 13  不同径距比下转子径向激励力分量Fy脉动曲线

    Figure 13.  Fy pulsation curve of the radial excitation force component of the rotor under different diameter‑distance ratios

    图 14  yz截面位置示意图

    Figure 14.  Schematic diagram of the yz cross⁃section location

    表  1  径距比参数

    Table  1.   Diameter⁃distance ratio parameters

    κD/mmA/mm
    1.349067
    1.369066
    1.389065
    1.409064
    1.439063
    1.459062
    下载: 导出CSV
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  • 收稿日期:  2021-07-05

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