摘要
以潜艇的红外隐身为背景,研究柴油机在水下排气时红外控制的方法。建立了柴油机水下排气两相流模型,提出柴油机水下排气两级方案:一级降温是柴油机排气总管内进行喷淋水雾;二级降温是采用小孔排气增加海水与热气的掺混。仿真研究了该方法对红外的抑制效果,结果表明:两级降温措施对柴油机的高温排气有良好的效果,可大大降低热气浮升至水面的温度从而降低红外特征。本文提出的方法对水下高温排气红外抑制具有重要意义。
Based on the submarine infrared stealth, study on the method to control the infrared signature when the diesel exhaust under water. The model of two-phase flow was built, and a two-level temperature reduction scheme was proposed.The first, the water was projected in the vent-pipe of diesel. The second, applying the pore pipe to increase the mix of exhaust and water. The performance of infrared signature suppression was proved by simulation. The results show that the excellent performance of infrared signature suppression was proved, the temperature of exhaust was reduction greatly on the sea surface based on the method of two-level temperature reduction, the significance of the measure for infrared suppression was proved.
作者
唐斯密
徐飞
陈中伟
TANG Si-mi;XU Fei;CHEN Zhong-wei(Academy of Naval Research,Beijing 100161,China)
出处
《舰船科学技术》
北大核心
2019年第3期89-92,109,共5页
Ship Science and Technology
关键词
柴油机
水下排气
红外抑制
仿真
diesel
exhaust under water
infrared signature suppression
simulation
