Research on infrared radiation characteristics of aircraft-ship coupling targets

In order to study the infrared radiation characteristics of the coupled aircraft-ship target, the steady-state flow field of the isolated aircraft carrier model, the on-board aircraft waiting-to-fly model and the on-board aircraft leaving-ship model was simulated by CFD method. The infrared radiation intensity of three models was calculated based on the flow field results and the inverse Monte Carlo method, and the influence of the carrier-based aircraft and its tail jet on the infrared radiation characteristics of the target was analyzed. The results show that the tail jet heats the flame shield and its adjacent deck, and the maximum wall temperature of the flame shield of the on-board aircraft waiting-to-fly model is around 1 700 K. In the infrared detection band of 3 to 5 μm, the infrared characteristics of the on-board aircraft waiting-to-fly model on the horizontal detection plane are very prominent at the forward detection Angle of the ship body, and the infrared radiation intensity of the on-board aircraft waiting-to-fly model on the pitch detection plane is about 691.6% higher than that of the isolated aircraft carrier model.