水下运动目标与水体的相互作用会在水面产生开尔文尾迹和伯努利水丘等特定波纹, 为机载、星载的雷达光电探测水下运动目标的位置及速度等提供了可能, 成为当前国内外研究的重要方向之一。为了研究水下运动目标水面波纹的特点, 论文采用三维不可压缩RANS方程, 辅以RNG k-ε湍流模型以及VOF自由面处理方法建立了水下运动目标水面波纹模拟的数学模型, 并对水下航行体在不同速度及深度等参数情况下的水面波纹进行模拟, 分析了速度及深度等参数与尾迹特征的关系。论文结果对实尺度水下潜艇的海面波纹模拟以及水下潜艇探测技术的研究具有意义。

The interaction of moving submerged target and fluid will generate specific wave patterns, such as the Kelvin wave and the Bernoulli dome, which provides possibility for the airborne and spaceborne radar to get the parameters including location and velocity of the target using photoelectric detection. It has become an important research direction. In order to study the characteristics of the wave pattern, a mathematic model was established by using the 3-D incompressible Reynolds-averaged Navier-Stokes (RANS) equations, RNG k-ε turbulence model and the volume-of-fluid (VOF) method. The simulation result of the wave patterns of the submerged target at different depths and velocities reveals the relationship between the parameters and the wave pattern. The result obtained is significant for the simulation and detection technology of real submarines.