An Experimental Study on Ship-Bank Hydrodynamic Interaction Forces

Lee, Chun-Ki

Journal of Navigation and Port Research 2013;37(3):251-256.
Published online June 30, 2013.

An Experimental Study on Ship-Bank Hydrodynamic Interaction Forces

Abstract

This paper is mainly concerned with the ship-bank interaction by model test. The experiments for the characteristics of hydrodynamic interaction forces and moments between vessel and bank with a mound were carried out in the seakeeping and maneuvering basin. A series of tests were carried out with ship model in parallel course along a vertical sidewall with a mound with varying lateral spacing between model ship and sidewall, length of sidewall and water depth. From the experimental results, it indicated that the hydrodynamic interaction effects increase as length of sidewall with a mound increases. Furthermore, for lateral spacing less than about 0.2L between vessel and bank, it can be concluded that the bank effects increase largely as the lateral spacing between vessel and bank decreases. However, for spacing between vessel and bank more than about 0.3L, the interaction effects increase slowly as lateral spacing decreases. Also, for the water depth to draft ratio(h/d) less than about 1.5, the hydrodynamic interaction effects increase dramatically as h/d decreases.

Key Words: Interaction;Bank effect;Water depth;Shape of bank;Spacing between ship and bank;Model test