| Citation: | WANG Hansheng, LI Yulong, XU Shijie, et al. Flow and heat transfer of aeroengine turbine guide vanes based on fluid-thermal-solid coupling[J]. Journal of Aerospace Power, 2025, 40（11）：20240464 doi: 10.13224/j.cnki.jasp.20240464
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Based on the principle of turbine vanes and the mechanism of flow and heat transfer, a fluid-thermal-solid coupling calculation system incorporating ANSYS Fluent, ANSYS APDL, and Flowmaster was developed through secondary development. This system achieved the invocating of different programs, automatic calculation, data exchange between different computational domains, and monitoring of calculation results. Based on this integrated simulation software, the flow phenomena in the blade channels and heat transfer phenomena of oil-cooled turbine vanes with different cooling channels aspect ratios were analyzed. The results showed that the structural design and layout of cooling channels significantly influenced the cooling effectiveness of oil-cooled turbine vanes. Moreover, as the aspect ratio of U-shaped cooling channels increased, the oil-cooled turbine vanes had a great impact on the temperature distribution. With the increase of the aspect ratio of U-shaped channels, the cooling efficiency of the turbine vanes decreased, but the reduction was minor; oil cooling structures with smaller aspect ratios exhibited more uniform temperature distribution on the turbine vanes outer walls and a larger cooling coverage area, while oil cooling structures with larger aspect ratios had a more concentrated cooling effect and a smaller cooling coverage area.
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