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Acta Armamentarii ›› 2015, Vol. 36 ›› Issue (10): 1949-1954.doi: 10.3969/j.issn.1000-1093.2015.10.017

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Calculation of Aerodynamic Heating and Ablation of Multi-layer Thermal Protection Material

ZHANG Zhi-hao, SUN De-chuan   

  1. (State Key Laboratory of Structural Analysis for Industrial Equipment,School of Aeronautics and Astronautics,Dalian University of Technology, Dalian 116024, Liaoning, China)
  • Received:2015-03-23 Revised:2015-03-23 Online:2015-12-11
  • Contact: ZHANG Zhi-hao E-mail:zhang.zh.aa@hotmail.com

Abstract: It is inevitable to evaluate the aerodynamic heat and the ablation of thermal protection material for designing a hypersonic aircraft. A coupling method is presented for the calculation of aerodynamic heat, material ablation and transient temperature distribution. The method and program are validated by experimental data. The results indicate that the method has higher precision and efficiency. For a given trajectory, the aerodynamic heat, ablation performance of thermal protection layer and temperature filed are predicted by the coupling method. The proposed method can be used to calculate the ablation and temperature distribution in given operation conditions in design phase which is referable for the design of multi-layer thermal protection material for hypersonic aircrafts.

Key words: thermology, aerodynamic heat, ablation calculation, transient temperature field, multi-layer thermal protection

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