Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1016/j.ast.2026.113688 |
| Titel (primär) | Failure modes and cavity evolution in compound ice-breaking water entry: based on the influence of ice thickness |
| Autor | Hu, X.; Zuo, L.; Wang, X.; Ren, Z.; Wang, C.; Wei, Y. |
| Quelle | Aerospace Science and Technology |
| Erscheinungsjahr | 2027 |
| Department | CLE |
| Band/Volume | 180, Part 1 |
| Seite von | art. 113688 |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Keywords | Water entry; Ice-breaking; CFD-DEM; Cavity evolution; Fragment transport |
| Abstract | The rapid development of polar resource exploration and underwater operations has created an urgent need for vehicles to penetrate floating ice covers before water entry. This study investigates the three-phase coupling dynamics of a rigid projectile undergoing compound motion (comprising both horizontal and vertical velocity components) as it penetrates floating ice of varying thicknesses. A high-fidelity numerical framework is established by coupling a volume-averaged computational fluid dynamics (CFD) method with the discrete element method (DEM), where the ice is modeled as a bonded-particle assembly to capture its discrete fragmentation and stochastic fracture networks. The results reveal that the ice thickness (Lt) functions as a critical parameter for the structural damage topology and the subsequent cavity evolution. For thin ice (Lt<1.0D0), the ice loss rate reaches up to 92.77%, and the projectile maintains a stable inclined trajectory with a maximum pitch deflection under 2 rad. For thicker ice (Lt>1.0D0), structural impedance reduces the ultimate ice loss rate to 62.38% while amplifying the peak pitch deflection over 4 rad. This severe angular tilt induces a skipping phenomenon, reducing horizontal kinetic energy and creating transversely nested cavities. The transport of ice fragments is found to be non-isotropic; airborne fragments exhibit an expansion of their spray range with increasing ice thickness, whereas underwater fragments transition from a dispersed particulate swarm into a concentrated cluster of large ice blocks. This work clarifies the feedback mechanisms between ice constitutive resistance and non-symmetric hydrodynamic evolution in compound motion water entry. |
| Hu, X., Zuo, L., Wang, X., Ren, Z., Wang, C., Wei, Y. (2027): Failure modes and cavity evolution in compound ice-breaking water entry: based on the influence of ice thickness Aerosp. Sci. Technol. 180, Part 1 , art. 113688 10.1016/j.ast.2026.113688 |
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