| Citation: | WANG Tian, XI Ping, HU Bifu, et al. A conjugated heat transfer oriented modeling method of turbine blade computational domain model[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(1): 74-82. doi: 10.13700/j.bh.1001-5965.2018.0197(in Chinese)
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To solve the problems of low modeling efficiency, unstable model quality and poor adaptability to numerical simulation in conjugated heat transfer numerical simulation of turbine blades with complex cooling structure, the turbine blade model for manufacturing and its modeling method were analyzed. Combined with demands for numerical simulation, a conjugated heat transfer modeling method for the turbine blades' computational domain was proposed. Firstly, an automatic positioning algorithm based on the external cooling feature was used to create the turbine blade's cooling air fluid domain. Through the adaptive pipeline intersection algorithm and the boundary automatic matching algorithm, the gas fluid domain that can adapt to different blade section line types was generated. During the modeling process, the key geometric features and non-geometric information required for the numerical simulation were extracted, and then were integrated with the cooling air fluid domain, the gas fluid domain and blade entity. The conjugated heat transfer computational domain model was completed. Based on the above research, a rapid modeling system was developed for modeling conjugated heat transfer computational domain model, which verified the effectiveness of the proposed method.
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