基于CFD方法的红外烟幕干扰性能研究

CFD-based Study on Countermeasure Performance of Anti-infrared Smoke Screen

采用计算流体力学方法对一平坦开阔地域的风场进行数值模拟,运用离散相模型对红外烟幕在该区域的扩散进行计算,得到了红外烟幕质量浓度的三维空间分布,并由Lambert-Beer定律计算出红外烟幕在跨风方向上的有效遮蔽区域,研究了风速对于红外烟幕遮蔽区域的影响规律。

In this paper, computational fluid dynamics method was applied for the numerical simulation of a flat and open wind field. The dispersion of anti-infrared smoke screen in this area was evaluated by discrete phase model, and the three-dimensional distribution of the concentration of anti-infrared smoke screen was obtained. The efficient shielding region of anti-infrared smoke screen across the wind direction was calculated by using Lambert-Beer law. The relationship between wind velocity and shielding region of anti-infrared smoke screen was also studied in this paper.