| 摘要: |
| 通过引入非定常尾迹诱导过渡的时间平均间歇因子的概念，提出常规过渡的起始点位置和尾迹诱导过渡起始点位置的算法，实现了对非定常尾迹影响下涡轮叶片上时间平均换热的数值模拟。结果显示，无论在叶片吸力面还是压力面，计算与实验符合均很好。 |
| 关键词: 航空发动机 涡轮叶片 传热 数值仿真 热效应 |
| DOI： |
| 分类号:V235.113 |
| 基金项目:航空科学基金 |
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| NUMERICAL SIMULATION OF INFLUENCE OF UNSTEADY WAKE ON HEAT TRANSFER OF TURBINE BLADE |
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Zhu Huiren, Zhang Li, Zhou Yongcheng, Liu Songling
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Dept.of Aeroengine Engineering,Northwestern Polytechnical Univ., Xi′an, 710072
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| Abstract: |
| The numerical simulation of influences of unsteady wake on the time average heat transfer of turbine blade was made by introducing the concept of wake induced transitional time averaged intermittency and putting forward methods for calculating both normal transition onset and wake induced transition onset. The agreement between predictions and experimental data is good both on suction surface and pressure surface of turbine blade. |
| Key words: Aircraft engine Turbine blade Heat transfer Numerical simulation Thermal effect |
