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红外诱饵弹是当前世界上最常用的红外对抗手段,它的红外辐射特性与其气动特性密切相关。为了描述气动特性对红外诱饵弹成像与非成像红外辐射性能的影响,首先应用流体力学与热传导理论,建立了红外诱饵弹的气动数学模型;其次从统计学的角度上提出了等效分子黑体假设,并运用概率论推导出一种计算热气体红外辐射特性的新方法;最后对红外诱饵弹气动辐射特性进行了仿真。仿真结果验证了所建模型的正确性。
Infrared decoy bombs is the most commonly used infrared countermeasure in the world, and its infrared radiation characteristics are closely related to its aerodynamic characteristics. In order to describe the influence of aerodynamic characteristics on infrared decoy imaging and non-imaging infrared radiation performance, the aerodynamic mathematical model of infrared decoy bomb was established by applying the theory of fluid mechanics and heat conduction. Secondly, the equivalent molecular bold hypothesis , And uses the theory of probability to derive a new method to calculate the infrared radiation characteristics of hot gases. Finally, the aerodynamic radiation characteristics of the infrared decoy are simulated. The simulation results verify the correctness of the proposed model.