A Thermal Insulation Design of Hyper-sonic Antenna Based on Engineering Algorithm of Aerodynamic Heating Effect
Top hypersonic aerodynamic heat simulation technology is one of the important supports for improving the heat pro-tection capability of antennas.To further shorten the development cycle and save costs,this article proposes an engineering algo-rithm that uses cold wall heat flux and wall surface recovery enthalpy as input conditions,and utilizes MATLAB and CFD joint itera-tive rapid solution method to quickly solve the antenna temperature field in high-speed airflow.After confirming the high consisten-cy between simulation results and experimental data through aerodynamic heat tests,this simulation method was used to perform heat insulation optimization design for an antenna with a high-speed aerodynamic heating duration of 500 seconds.Based on the pri-mary and secondary factors identified through simulation that cause temperature rise of the core device,targeted improvement mea-sures were proposed.The final target printed circuit board temperature was reduced from 320℃ to 142℃ with significant thermal control effects.
NETL
NSTL
万方数据
维普
