Harbin Engineering University and University of Duisburg-Essen Bilateral Seminar on Ship and Marine Mechanics was held on August 15, 2023, at Harbin Engineering University. This seminar was jointly organized by the College of Shipbuilding Engineering of Harbin Engineering University and the Institute of Ship Technology, Maritime Technology and Transport Systems of University of Duisburg-Essen, Germany. The objective of this seminar was to create a new platform for young scholars to collaboratively explore key issues in fluid mechanics, fluid-structure interaction and other critical aspects of naval architecture and ocean engineering. The event aimed to facilitate the sharing of the latest research findings and promote academic and technical exchange between China and Germany, as well as China and Europe, in the field of naval architecture and ocean engineering.