Abstract
The attitude change of a missile under lateral loading during underwater launch affect launch safety. Based on computational fluid dynamics(CFD) and overset dynamic mesh method, multiphase flow caused by underwater ejection is simulated. Underwater ejection and lateral dynamic coupling model in accordance with the changes of bearing load caused by missile of 6-DOF movement is established. Simulation results show that the coupling model and the experimental measurement result have an error of less than 5% at the maximum negative pressure impact. It is shown that the characteristics of water-air two-phase flow during underwater ejection can be described effectively by coupling model. Moreover, the model can be used for coupling analysis of underwater ejecting launch and dynamics model.
| Translated title of the contribution | Coupling model of underwater ejecting launch and lateral dynamics |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 1505-1511 |
| Number of pages | 7 |
| Journal | Ying Yong Li Xue Xue Bao/Chinese Journal of Applied Mechanics |
| Volume | 38 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 15 Aug 2021 |