Xinlei LI, Kun WU,Xuejun FAN

DOI Number: XXX-YYY-ZZZ

Conference number: HiSST2024-00335

For propulsion systems of hypersonic vehicles, an efficient thermal protection system (TPS) is of great significance to ensure the safety and stability of the vehicles. To enhance the heat transfer performance, the fluid-thermal coupled topology optimization (TO) of regenerative cooling structures is researched. The modified Brinkman-Forchheimer equation and k-ε equations are employed in TO’s model, which is verified to be effective for high Reynolds number flow. The n-Decane with variable thermos-physical and transport properties is worked as the coolant. The optimization is conducted in a continuous adjoint framework which is constructed in OpenFOAM, and a series of optimization cases in terms of various power dissipation constraints are designed. The optimized layouts are then extracted to be further numerically simulated. The results show that the heat transfer performance of the optimized cooling structure is mostly enhanced compared with the conventional cooling structure, and it also shows good performance under other operating conditions.

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In Categories: 1.Events, HiSST 2024, Thermal and Energy Management
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