CAJ | 학술논문

建立水雾红外衰减模型时，通常把水雾空间看作单一均匀整体处理，然而雾滴的扩散现象使水雾的雾滴密度无法保证处处相等，所以仿真结果与实际情况相比普遍存在较大偏差。针对这一问题，基于高斯扩散理论与Mie散射理论，提出了一种新的建模方案。通过将水雾空间划分为多个子空间，并计算每个子空间内水雾消光性能的建模方法，提高建模的准确性。同时结合红外制导导弹来袭的方向变化，计算出不同方向上的水雾消光性能。从仿真结果可以看出，这种建模方式能够很好地克服以往建模方法的缺陷，为探索水雾的精确建模提供了一种新思路。
건립수무홍외쇠감모형시，통상파수무공간간작단일균균정체처리，연이무적적확산현상사수무적무적밀도무법보증처처상등，소이방진결과여실제정황상비보편존재교대편차。침대저일문제，기우고사확산이론여Mie산사이론，제출료일충신적건모방안。통과장수무공간화분위다개자공간，병계산매개자공간내수무소광성능적건모방법，제고건모적준학성。동시결합홍외제도도탄래습적방향변화，계산출불동방향상적수무소광성능。종방진결과가이간출，저충건모방식능구흔호지극복이왕건모방법적결함，위탐색수무적정학건모제공료일충신사로。
The models of water mist always regard the water mist space as a single homogeneous whole. Because the droplets density changes everywhere, which is caused by the diffusion of the water mist, there is a huge deviation between the simula?tion results and the actual situation. In order to solve this problem, a new modeling method is given based on Gaussian diffu?sion theory and Mie scattering theory. Through the method of dividing the water mist space and calculating the extinction per?formance of water mist in each subspace, the accuracy of the model is improved. At the same time, considering the change of the infrared guided missile incoming direction, the different directions of water mist extinction coefficient is calculated. From the simulation results, the modeling approach proves to overcome the disadvantages of the former modeling methods, and pro?vides new ideas to establish more accurate models of water mist.