温度分层海洋中水下航行体引起水面特征参数变化规律的研究

The Study on the Varied Laws of Surface Feature Parameters Caused by a Going Body Underwater in the Temperature Stratification Ocean

温度分层海洋中水下航行体引起水面特征参数的变化规律是发展红外反潜技术的关键课题。基于有限体积法的FLUENT软件,在具有垂直温度分层的海水中,对排放热水的水下航行体热尾流的浮升过程及其与自由表面的相互作用进行了数值模拟,获得了水下航行体引起的自由表面的温度、密度、速度等特征参数的变化规律,并对温度变化规律进行了实验验证,可为水下航行体的探测提供一定的理论基础。

The varied laws of surface feature parameters caused by a going body underwater in the temperature stratification ocean are the key to the development of infrared anti-submarine technology .Based on the FLUENT with the Finite Volume Method, for the thermal wake behind a going body with exhaust of hot water underwater in the seawater with the vertical temperature gradient, the buoyant process and the interaction of the thermal wake with the surface are calculated by means of numerical simulation . The varied laws of the surface temperature, density and velocity caused by the going body underwater are obtained, and the varied law of the surface temperature is verified through experiment ,which may provide a certain theoretical basis for the detection of the going body underwater.