Numerical analysis on effects of inlet pressure and temperature non-uniformities on aero-thermal performance of a HP turbine
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- 作者：Zhiduo Wang ; Dian Wang ; Zhaofang Liu ; Zhenping Feng ; zpfeng@mail.xjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Gas turbine ; Pressure and temperature non-uniformity ; Aerodynamic ; Heat transfer ; Unsteady numerical simulation
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：104
- 期：Complete
- 页码：83-97
- 全文大小：7028 K
文摘
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The pressure non-uniformity induces PVs or CRVs in both the stator and rotor passages.
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The CRVs increase the vane and blade HTC by 104% and 20–30%, respectively.
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Higher total pressure near the tip enhances the tip leakage flow and increases the tip HTC by 4%.
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The HS migration path is altered and the airfoil temperature is increased by the PV and decreased by the CRV.