论文部分内容阅读
为了准确地评价舰船动力排气红外抑制装置的抑制效果,从气体辐射传输方程和含气体的热空腔的辐射方程出发,采用SLG模型描述气体辐射,在此基础上建立了排气红外抑制装置红外辐射仿真模型。通过模型实验,对排气红外抑制装置仿真模型的计算结果进行了验证,结果显示:仿真模型的预测结果与实验测量结果在3～5μm波段吻合较好,而在8～12μm波段与实验测量结果存在一定偏差。仿真模型并未考虑不完全燃烧产生的碳黑颗粒对气体辐照造成的影响,这可能是造成偏差的主要原因。
In order to accurately evaluate the suppression effect of the infrared emission suppression device of the ship power exhaust, the SLG model is used to describe the gas radiation from the gas radiation transmission equation and the radiation equation of the hot cavity with gas. On this basis, the exhaust gas infrared suppression Device infrared radiation simulation model. Through the model experiment, the calculation results of simulation model of exhaust infrared suppression device are validated. The results show that the simulation results are in good agreement with the experimental measurement results in the 3 ~ 5μm band, while in the 8 ~ 12μm band, the experimental results There is a certain deviation. The simulation model did not consider the impact of carbon black particles from incomplete combustion on gas irradiation, which may be the main reason for the deviation.