泡沫-水两用幕厚度与光衰减效果的关系

理论分析与实验研究了水幕系统施放泡沫-水两用干扰幕产生的泡沫幕/水幕施放厚度与光衰减效果的关系。实验对空中和模拟甲板表面施放不同气流量比例的4～32层离散液滴状水幕和泡沫幕，测量其对平行光的衰减。实验结果表明:对于不同泡沫-水两用幕施放位置和气流量比例，随着施放厚度的增加，光衰减效果均明显提高，透射照度的衰减最高可达95.8%（空中）与98.4%（甲板表面）；透射照度衰减的速率随施放层数的增加而逐渐减小。

Relationship between optical attenuation effect and thickness of foam-water dual-purpose curtain

The relationship between the light attenuation effect and the thickness of foam/water curtain produced by foam-water dual-purpose interfere curtain of countermeasure washdown system was analyzed theoretically and studied through experiments. The curtain composed of dispersed droplets with thickness from 4 to 32 layers and different gas-liquid ratio was released to experimental deck and atmosphere, and the attenuation of parallel light was measured. Results show that attenuation of visible light by foam-water dual-purpose curtain increases significantly with thickness. The maximum of light attenuation reaches 95.8% when released to atmosphere and 98.4% when released to experimental deck. The transmission diminishes slower when the thickness increases. The research is valuable for improving interfere theory and equipment technique of foam curtain.