Session: 08-06-01 non-presentations

Paper Number: 127819

127819 - Establishing a Reliable Fluid Domain for Hydroelastic Water Entry Analysis 

Slamming-induced loads are a critical factor in the structural design of various marine structures. This has prompted extensive research aimed at comprehending this wave-structure interaction phenomena. Among the various aspects studied, hydroelasticity holds particular importance in enhancing structural safety and integrity. Hydroelasticity research involves the crucial coupling of the fluid domain and structural domain. However, before progressing to further integrate these two domains in later stages, it is of paramount importance to initially establish a reliable and robust fluid domain model. But the process of creating a reliable fluid domain model has not received in-depth and comprehensive attention in prior coupling research. In this paper, our focus is on creating a reliable fluid domain model based on the Finite Volume Method (FVM) embedded in Star-CCM+. This model will serve as the foundation for future coupling process. We delve into various aspects of the model, including grid design, time steps, boundary conditions, fluid domain size, and numerical solution details, all of which have a significant impact on the reliability of the fluid domain. The non-viscous fluid is assumed, and free surface flows are tracked by using the Volume of Fluid (VOF) method. The investigation results are then compared with existing analytical and experimental data. The detailed discussions in this paper shed light on the essential factors affecting the reliability of the fluid domain model and its accuracy in predicting slamming forces during the water entry of a 3D wedge. 

Presenting Author: Dongni Yan Aalto University

Presenting Author Biography: Dongni Yan is presently a Doctoral researcher at Marine & Arctic Technology group at Aalto University. Her doctoral research focuses on the numerical prediction of the slamming loads and associated structural dynamic responses by advanced CFD and FEA coupling methods. She has work experiences as a naval architect & structural analyst in Etteplan Finland Oy, also participated relevant work at Deltamarin Ltd. She has been teaching assistant of several postgraduate courses at Aalto University closely related to fluid dynamics and ship hydrodynamics, e.g., Fluid Dynamics, Ship Hydrodynamics and Ship Buoyancy and Stability.

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