| 航空发动机篦齿封严特性数值模拟 |
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| 引用本文： | 赵海刚,刘振侠.航空发动机篦齿封严特性数值模拟[J].燃气涡轮试验与研究,2010,23(1):26-30. |
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| 作者姓名： | 赵海刚 刘振侠 |
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| 作者单位： | 1. 中国飞行试验研究院,陕西,西安,710089
2. 西北工业大学,动力与能源学院,陕西,西安,710072 |
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| 摘 要： | 本文运用数值计算方法，从分析齿腔内流场和篦齿顶板换热的角度研究了篦齿的封严特性。通过多种工况的计算，分析了雷诺数和齿顶宽与齿隙之比（T／C）对篦齿腔内流动、压降损失以及齿腔顶板换热系数的影响。计算数据和实验数据吻合良好，误差较小。研究表明：雷诺数、齿顶宽与齿隙之比影响着齿腔内部流动和换热的状态，是决定篦齿封严效果的主要因素。
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| 关 键 词： | 航空发动机 直通式封严篦齿 雷诺数 换热系数 |
Numerical Analyses for the Performance of Straight Labyrinth Seal of Aircraft Engine |
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| ZHAO Hai-gang,LIU Zhen-xia.Numerical Analyses for the Performance of Straight Labyrinth Seal of Aircraft Engine[J].Gas Turbine Experiment and Research,2010,23(1):26-30. |
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| Authors: | ZHAO Hai-gang LIU Zhen-xia |
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| Abstract: | In order to investigate the performance of the straight sealing labyrinth at static state in aero-engine,model of straight sealing labyrinth was established and applied to compute the flow characteristics and heat transfer in the straight sealing labyrinth.With the result of numerical simulation,the effect of Reynolds numbers and T/C on flow field,pressure lost,coefficient of heat transfer was studied.By com-paring some group results of numerical simulation and experiments data,it is found the numerical res... |
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| Keywords: | aero-engine straight sealing labyrinth Reynolds number heat transfer coefficient |
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