The Measurement Method Research of the Aerodynamic Heating Test for the Micro-ablative Materials

4th Annual International Workshop on Materials Science and Engineering

Peng, Jinlong^1,2 ; Tu, Jianqiang^1,2 ; Ou, Dongbin^1,2 ; Zhang, Yudong^2

Beijing Key Laboratory of Arc Plasma Application Equipment, Beijing

100074, China^1

China Academy of Aerospace Aerodynamics, Beijing

100074, China^2

关键词: Ablation resistance;    Measurement methods;    Measuring precision;    Near-space vehicles;    Protective structures;    Redundancy design;    Thermal environment;    Thermal parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/381/1/012103/pdf
DOI  :  10.1088/1757-899X/381/1/012103

来源: IOP

【 摘 要 】

This paper introduces the test of the ablation resistance of different micro-ablative materials in high pressure low enthalpy and high heat flux conditions. In order to meet the thermal environment of the future near space vehicle, using pipe arc heater to do the ablation resistance tests for different micro-ablative materials. Due to the low redundancy design of the thermal protective structure, the thermal parameters in ground simulation test need to be high accuracy and repeatability. Use the improved reusable block type heat meter to measuring heat flux, and check the status by using the calibration sheet steel. The results show that this heat meter has good measuring precision accuracy and commendable repeatability. In the end, it shows the analysis of the ablation resistance of the different micro-ablative material models.