Infrared characteristic simulation method, device and equipment for ship exhaust device

The invention discloses an infrared characteristic simulation method for a ship exhaust device, which can improve the operation speed of infrared radiation data simulation result production, greatly reduce the time complexity, approach layer by layer and gradually refine in application, improve the detection efficiency and reduce the detection cost. The problems that computer memory consumption is large, computer overhead is high, precision is reduced after model simplification, and calculation errors are also introduced due to magnitude order differences in the process of mapping flow field parameters to infrared grids are solved. 本申请公开了一种舰船排气装置红外特性仿真方法，可以提高红外辐射数据仿真结果生产的运行速度，大大降低了时间复杂度，并且在运用上层层逼近，逐步细化，提高检测效率，解决计算机内存耗费大、计算机开销高、模型简化后精度下降以及流场参数映射到红外网格的过程中由于数量级的差异同样会引入计算误差的问题。