基于STAR-CCM+的潜艇周围复杂流场数值模拟

The numerical simulation of complex flow field around the submarine based on STAR-CCM+

为研究潜艇周围复杂的流场分布,本文基于STAR-CCM+软件平台,结合SST k-?模型,通过求解Navier-Stokes方程,分别对均匀来流以及非均匀来流这两种来流方式下潜艇做直航运动以及斜航运动这四种工况下的周围流场进行数值模拟.首先计算了均匀来流下潜艇做直航运动时不同航速下的阻力以及表面不同位置处压力系数及摩擦阻力系数分布,与实验结果符合良好.接下来对四种工况下潜艇周围流场中的漩涡分布,尤其对位于指挥台围壳与尾翼这些附体附近区域的漩涡分布进行了分析,同时还计算了非均匀来流情况不同速度分布形式下潜艇的受力以及力矩,为潜艇平台回收AUV时路线选择提供参考.

For studying the complex flow field distribution around submarine, this paper respectively numerically simulated of the four flow field around the submarine when it sailing in the straight ways and the oblique ways under the condition of uniform flow and non-uniform flow by solving the Navier-Stokes equations based on the STAR-CCM+ software platform combining with the SST k-? model. First calculate the resistance under different speed edge and surface pressure coefficient and friction coefficient when submarine sailing in the straight ways under the uniform flow, in good agreement with the experimental results. Next analyzing the vortex distribution around the submarine under the four types of working condition. especially for the vortex distribution of the the vicinity of appendage of the podium confining shell with tail,but also calculated the force and torque of the submarine in different velocity distribution form under non-uniform flow, thus provide a reference for the route selection when submarine recovery AUV.