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所属单位：能源与动力学院
发表刊物：Hangkong Dongli Xuebao
摘要：Numerical and experimental investigations were performed to study the effect of the slotted tailboard on the periodicity of transonic gas turbine cascade. Computational fluid dynamics was employed to study the effect of tailboards for pressure distributions of the blades and cascade passage exits with different void ratios (10%, 15%, 30%, 50%) and pitch angles (70°, 71°, 72°), meanwhile experiment was performed to verify that the tailboard improved the periodicity of cascade passage exit flow field. Results showed that, without tailboard, pressure distributions of the blades deviated from the periodic result apparently and the periodicity error of the cascade passage exits was quite large. Pressure distributions were affected by tailboards with different void ratios and pitch angles, besides, the periodicity of the flow field can be improved with a tailboard of appropriate parameters. Pressure distributions of cascade passage exits were much closer to each other and the periodic result with void ratio of 50% and pitch angle of 70° tailboard when compared with no tailboard condition, while the periodicity errors of numerical and experimental results were reduced by 47.6% and 28.1%, respectively. © 2018, Editorial Department of Journal of Aerospace Power. All right reserved.
ISSN号：1000-8055
是否译文：否
发表时间：2018-12-01
合写作者：Gong, Hao,岳晨
通讯作者：徐惊雷