Numerical simulation validating of a duck-mouth type marine debris collection device's collection mechanism.

Marine debris (MD) poses a significant threat to global coastal ecosystems around the world, necessitating effective strategies for its collection and removal. As a new type of fixed collection device, the duck-mouth type marine debris collection device (MDCD) consists primarily of two components: a central collection system and floating fences which are positioned at a certain angle and open towards the outer bay located on both sides of it. This paper aims to establish a coupling drift model based on hydrodynamic model to study the performance of duck-mouth type MDCD, verify its effectiveness.