Numerical Investigations on Oblique Water Entry Dynamics of an Autonomous Underwater Vehicle Impacting Water Surface

Abstract

This study conducts a detailed numerical investigation into the oblique water entry dynamics of an autonomous underwater vehicle (AUV) impacting the water surface based on the fundamentals of water entry dynamics. It integrates recent advancements in numerical simulations to address the challenges of transient motion and fluid-structure interactions. This study uses advanced computational fluid dynamics (CFD) simulations to explore the complex interaction between the vehicle and the surrounding fluid during the critical transition from air to water. The primary objectives of this investigation include the assessment of resultant forces and the identification of optimal launch parameters such as entry velocity and entry angle to enhance entry effectively. The numerical methodology and results offer valuable insight into the hydrodynamic behavior of AUVs, thereby contributing to more advanced and capable air-launched AUV systems.

Keywords

Autonomous underwater vehicles / Hydrodynamics / Computational fluid dynamics / Hydrodynamic forces / Vehicle stability

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Harbin Engineering University and Springer-Verlag GmbH Germany, part of Springer Nature