Three-Dimensional Flow Field Simulation of Cavity with an Embedded Mounting Device

Utilizing a numerical simulation approach based on the SST k-ω turbulence model, the unsteady turbulent flows at a high Reynolds number within a three-dimensional cavity with an embedded mounting device are predicted. The accuracy of the numerical simulation method is validated by comparing the simulated unsteady flows with those from the M219 standard cavity model. Furthermore, a detailed prediction of the unsteady flows within the cavity is conducted. The pressure distribution and flow field characteristics of the cavity with and without the mounting device are compared and analysed. The results indicate that the unsteady characteristics of a complex-geometry cavity with an embedded mounting device can be accurately forecasted, showing a notable change in the flow field pressure distribution upon installation of the mounting device and fluctuations in the forces exerted on the device. These findings offer valuable insights and serve as a useful reference for future research on cavity structural vibration analysis and control.