Research on prediction method of pulsating pressure of underwater vehicles

When fluid flows through the underwater vehicles, flow separation occurs, and generates eddy currents, which in turn induce pulsating pressure on surfaces of generating noise making vehicle easy to expose. We conducted research this phenomenon, taking cone-column shell as object based Large Eddy Simulation (LES) theory. Additionally, calculation results each parameter such grid scale structural surface, structure height first layer with different values were compared experimental determine model simulation highest accuracy. Furthermore, systematic numerical prediction method was supposed by combination methods. Moreover, accuracy verified experiments. The provides a generally good reference basis simple tool for engineering applications.