水下航行器热尾流在稳定分层环境中的浮升规律

THE BUOYANT TRAJECTORY OF THERMAL WAKE AFTER UNDERWATER VEHICLE IN STABLE STRATIFIED FLUID

一、在稳定分层流中热尾流浮升的分析 稳定分层环境中,对远程热尾流作假设:1)流动定常;2)尾流是轴对称的;3)在尾流未达到最大浮升高度时,在分层环境中尾流的扩展与均匀流中的扩展相似;4)密度变化仅在浮力项中考虑,这就是所谓的Boussinesq近似。

In this paper, the buoyant trajectories of thermal wakes after underwater vehicles in stable stratified fluid have been investigated in theory and experiment. It has been found that the buoyant trajectories of thermal wakes in stratified fluid are different from that in homogeneous fluid. The,.buoyant trajectories of thermal wakes in stratified fluid are wavy. The factors influencing the buoyant trajectories of thermal wakes in stratified fluid add a Richardson number than that in the homogeneous fluid.