准确获得潜艇热尾流浮升、扩散规律及其水面温度分布特征是发展红外探潜技术的关键。本文基于动网格技术，建立潜艇水下航行三维计算模型，分别采用壁面法与VOF法对潜艇热尾流浮升过程进行仿真。研究获得了潜艇热尾流的浮升、扩散规律及其水面温度分布与红外识别特征。在此基础上，分析了不同冷却水排放方案下热尾流水面温度分布特征的变化规律，提出了抑制热尾流浮升、减弱水面温度特征的方法。本文研究结果可为下阶段的实验研究与测量提供一定理论基础。
Obtaining accurately the buoyancy trajectory and the temperature characteristics on sea surface is the basis of infrared technology for detecting submarine. In this paper, the navigation process of submarine in the 3-D sea environment is studied numerically. The dynamic meshing technique is employed and both of fixed wall method and VOF method are used to simulate the buoyancy process of thermal wake. The buoyancy trajectory of the thermal wake, the corresponding temperature distribution and infrared characteristics on sea surface are obtained. Furthermore, the variation of temperature distribution characteristics on sea surface with the discharge program of cooling water is analyzed, and the suppression methods are proposed. The paper provide theoretical base for the experimental study in the future.
2018,40(3): 8-13 收稿日期：2017-03-30
DOI：10.3404/j.issn.1672-7649.2018.03.002
分类号：U674.76
基金项目：哈尔滨工业大学研究生教育教学改革研究资助项目（JGYJ-201650）；哈尔滨工业大学（威海）共建基金资助项目（2016DXGJZD01）
作者简介：来庆志(1990-),男,硕士研究生,主要研究方向为水下目标的红外辐射特性
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