As can be seen from the application of energy efficiency design index (EEDI)-related
regulations the enhancement of propulsive performance in the design phase of merchant ships have
been increasing in recent years. Mitsubishi Heavy Industries, Ltd. (MHI) develops hull forms
precisely and efficiently using enhanced CFD technologies. The company improved the estimation
accuracy of flow fields around the vessel by eliminating simplification of models as much as
possible, by reproducing conditions close to the actual phenomenon. This paper presents the
developed CFD tool and examples of its application to product development.
