飞机除冰液地面除冰过程模型仿真与实验

Model Simulation and Experiment of Aircraft Deicing Process Using Deicing Fluids on Ground

描述了飞机地面除冰过程相关参数和热量损耗关系,选择机翼表面温度和积冰厚度作为描述该过程的状态变量,基于热平衡理论建立了该过程的数学模型。通过仿真研究,得出飞机地面除冰过程除冰效率的变化规律:提高除冰液温度,除冰效率明显提高;如果除冰液温度恒定,一味地增大除冰液流量,除冰效率提高不明显。在飞机地面除冰环境模拟装置上进行了模型验证实验,实验和仿真结果趋势一致,表明所建模型与实际过程匹配,可以为后续飞机地面除冰过程装备参数优化奠定基础。

Several parameters and thermal consumption associated with the deicing process were described,and then the airfoil temperature and the ice thickness on the airfoil were chosen as state parameters to depict the deicing process.The deicing process model was established and simulated based on thermal balance.The simulation results reveal that the deicing efficient is enhanced obviously with a high deicing fluids temperature,but the enhancement degree is small if the deicing fluids flow rate is raised only with the temperature constant.Finally,an experiment was done based on an aircraft deicing simulation equipment.Experiment results are consistent with simulation result,which shows that the model has a good match with practical process.So this model could be as the base for the further research on the aircraft deicing process parameters optimization.