MODELING OF SHIP WAVE GENERATION BASED ON LEWIS-FORM AND INTRODUCTION TO BOUSSINESQ-TYPE WAVE TRANSFORMATION MODEL

Abstract

 In resent busy ports and harbors, their tranquility must be affected with not only storm waves propageted from outside but also harbor waves generated by inside ship navigation. In this study, a new ship wave generation method is developed and installed to a Boussinesq-type wave transformation model, considering expandability of setting of ship navigation channels and applicability for variable ship shape. For approximation of ship shape, not only the parabolic function but also the Lewis-Form are used. The Lewis model can reproduce results of past model experiments in over same accuracy on comparison with the parabolic model. However, improvement of dependency in spatial resolution for generating ship wave heights may be required in near future.