【摘要】 精准锁定水下目标、快速反演航行信息，准确识别特征属性，是海洋探潜的关键问题。本文构建了分层流中钝体绕流数理模型。开展了多源扰动诱发内波与热尾流浮升抑制耦合作用下，自由表面兴波特性及尾迹特征演变机制的数值模拟研究。捕捉了分层流中表面尾迹的温度场、流场及波高场分布信息，探索了分层流中尾迹演化机理。研究对反演潜航器航行参数，实现间接反潜具有重要意义。更多还原

【Abstract】 Locking underwater targets precisely, inverting navigation information rapidly, and identifying characteristic attributes are the key issues of submarine detection. In this paper, a mathematical model of bluff body flow in stratified flow is constructed. The numerical simulation was carried out to analysis the characteristics of free surface wave patterns and to explore the evolution coupling mechanism of internal wave wake induced by multi-source disturbance and thermal wake affected by buoyancy suppression. Furthermore, the surface wake distribution information of the temperature field, velocity field and wave height field was captured, and the wake evolution mechanism was investigated in the stratified flow. Results obtained are of great significance to invert the navigation parameters of the underwater vehicle and to accomplish indirect anti-submarine.更多还原