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前板结构对低滞后刷式密封性能影响分析

迟佳栋 王之栎

迟佳栋, 王之栎. 前板结构对低滞后刷式密封性能影响分析[J]. 航空动力学报, 2012, 27(8): 1902-1906.
引用本文: 迟佳栋, 王之栎. 前板结构对低滞后刷式密封性能影响分析[J]. 航空动力学报, 2012, 27(8): 1902-1906.
CHI Jia-dong, WANG Zhi-li. Analysis of front plate's effect on low hysteresis brush seal[J]. Journal of Aerospace Power, 2012, 27(8): 1902-1906.
Citation: CHI Jia-dong, WANG Zhi-li. Analysis of front plate's effect on low hysteresis brush seal[J]. Journal of Aerospace Power, 2012, 27(8): 1902-1906.

前板结构对低滞后刷式密封性能影响分析

Analysis of front plate's effect on low hysteresis brush seal

  • 摘要: 针对不同前板结构的低滞后刷式密封,采用多孔介质模型,进行流场计算,对计算得到的上游刷丝压力、速度分布、刷丝上游靠近跑道区域的湍流动能以及刷式密封泄漏量进行分析,讨论对于低滞后刷式密封的性能的影响.分析表明:前板结构对上游刷丝压力、轴向速度分布以及刷式密封泄漏量无明显影响,对上游刷丝径向速度分布影响较大;无前板及过长前板结构,刷封上游靠近跑道区域湍流动能较大,前板开孔可降低刷丝上游靠近跑道区域的湍流动能,减弱刷丝扰动的趋势.

     

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出版历程
  • 收稿日期:  2011-08-22
  • 刊出日期:  2012-08-28

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