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无叶扩压器内部非定常流动的PIV测量 被引量:1

PIV Measurement of Unsteady Flow Field Vaneless Diffuser
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摘要 利用激光粒子成像速度仪 (PIV )测量了无叶扩压器内部的非定常流场。试验发现在无叶扩压器内 ,沿扩压器宽度方向 ,气流速度分布是不均匀的 ,在靠近叶轮叶片吸力面侧形成了一个低速区 ,这个低速区是由叶轮出口的尾迹流造成的。这个低速区的存在影响了无叶扩压器的扩压能力和效率。 Unsteady flow field in vaneless diffuser is measured by PIV. Phenomenon and law of unsteady flow in vaneless diffuser is analyzed in detail.
出处 《风机技术》 北大核心 2004年第3期10-13,共4页 Chinese Journal of Turbomachinery
关键词 离心式 压缩机 无叶扩压器 激光粒子成像速度仪 非定常流动 试验 Centrifugal compressor Vaneless diffuser Test PIV
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参考文献10

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二级参考文献2

  • 1王尚锦,应用力学学报,1985年,2卷,2期,67页
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共引文献8

同被引文献6

  • 1张勇,闻苏平,胡小文.叶片扩压器在小流量离心压缩机中的应用研究[J].风机技术,2007,49(3):3-6. 被引量:6
  • 2王尚锦.离心压缩机三元流动理论与应用[M]西安:西安交通大学出版社,1991.
  • 3Fatsis A. Three-dimensional unsteady flow and forces in centrifugal impellers with circumferential distortion of the outlet static pressure[J].Journal of Turbomachinery,Transactions of the ASME,1997.94-102.
  • 4Justen F. Experimental investigation of unsteady flow phenomena in a centrifugal compressor vaned diffuser of variable geometry[J].Journal of Turbomachinery,Transactions of the ASME,1999.763-771.
  • 5Engeda A. The unsteady performance of a centrifugal compressor with different differents[J].Proc Instn Mech Engrs Part A,2001.585-599.
  • 6杨策,马朝臣,王航,老大中.离心压气机叶轮设计方法研究进展[J].内燃机工程,2002,23(2):54-59. 被引量:14

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