Predicting the hydrodynamic load on a body entering the water is important in the field of marine engineering. When a ship moves in water, water entry adversely affects ship motion and can even damage the ship structure.
Therefore, water entry problems have been widely investigated with experimental, theoretical and numerical methods.
According to preceding researches, however, the moving particle semi-implicit (MPS) method has not been widely applied to water entry problems.
Pak Chol Jun, a researcher at the Faculty of Naval Architecture and Ocean Engineering, has investigated hydrodynamic load acting on a two-dimensional (2D) wedge during water entry by means of the widely-used moving particle semi-implicit (MPS) method.
First, he proposed two techniques for enhancing the performance of MPS and a symmetry domain technique for reducing the computational cost. Additionally, he proposed a fluid–solid coupling algorithm using the MPS method.
The comparison results to verify the accuracy of the proposed techniques show that the MPS with the proposed schemes can provide reliable numerical prediction for water entry problems.
For further details, you can refer to his paper “Numerical Investigation on Water Entry of Two-dimensional Wedges with a Moving Particle Semi-implicit Method” in “Journal of Marine Science and Application” (SCOPUS).