ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Optimization design of aerodynamic heating of large area simulated by quartz lamp array
Received date: 2017-01-23
Revised date: 2017-05-25
Online published: 2017-05-27
Supported by
National Natural Science Foundation of China (11472295)
The optimization design of simulation large area aerodynamic heating by quartz lamp array is studied to adjust the requirement of accurate simulation of structural thermal test. The simulation program for radiation heat flux of quartz lamp array is developed. The application range of the traditional method for obtaining the heat flux distribution of the quartz lamp array by interpolation and superposition of the single lamp heat flux distribution database is analyzed. Based on the genetic algorithm, the optimization design method for heat flux simulation of the quartz lamp array is developed by selecting the power of the single lamp in the lamp array as parameters to be optimized. The aerodynamic heating on the windward side of a structural component of a vehicle is simulated by the lamp array, and the temperature variation of the windward surface is obtained under the conditions of lamp array heating and aerodynamic heating. The results show that the simple quartz lamp array can effectively simulate large inhomogeneous aerodynamic heating with the lamp power of the quartz lamp array optimized by the method proposed, which can effectively improve the simulation precision of the structural thermal test, but the accuracy of simulation of the high heat flux at front position needs to be further improved.
ZHU Yandan , LIU Xiao , ZENG Lei , DU Yanxia , GUI Yewei . Optimization design of aerodynamic heating of large area simulated by quartz lamp array[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017 , 38(9) : 121159 -121159 . DOI: 10.7527/S1000-6893.2017.121159
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