Li Yu, Linxin Tian, Xinlei Li, Kun Wu, Xuejun Fan

DOI Number: N/A

Conference number: HiSST-2025-260

For the propulsion system of high-speed vehicles, an efficient thermal protection system is of great importance to ensure their safety and stability during flight. In this paper, the fuel cooling structure of the device installation panel for a combined-cycle engine is optimized using topology optimization method (TO) incorporating conjugate heat transfer. The topology optimization model employs a pseudo-density approach and takes the average temperature of the design domain as the optimization objective, while considering the material volume and power dissipation constraints. The optimizations were performed within a continuous adjoint framework implemented in OpenFOAM and reasonable
optimized layouts were obtained. The optimized layouts are then extracted and further conjugate heat transfer simulations are performed. The results show that the optimized cooling structure has improved heat transfer performance compared to the conventional cooling structure and exhibits good performance under wide operating conditions.

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