CFD/EFD Combined methods

Research on improved prediction methods for ships

Improved standards for ship performance evaluation in the design stage are a prerequisite for reducing the energy consumption of the world’s fleet. The existing official standards are based on experimental methods (EFD). Numerical methods (CFD) have been introduced as alternatives, but they cannot be used stand-alone with high confidence. Could hybrid CFD/EFD methods be the way forward? 

Our researchers are now trying to answer questions such as: how can EFD and CFD be combined in smart ways, what is required to correlate and validate the methods before they are adopted as standards, how can the quality of the new methods be assured and how are these standardised?

SSPA and Chalmers University of Technology run a joint research project on power prediction methods using combined CFD and EFD since January 2018.

By developing new hybrid methods, we take advantage of the benefits of both approaches and ensure higher confidence in the predictions. The project will run until the end of 2020 and will primarily develop a strategy for developing hybrid methods. The work includes mapping the need for improvements and evaluating different approaches, CFD/EFD combined methods and strategies to ensure the reliability of new methods. The project is linked to the Specialist Committee on Combined CFD and EFD Methods of the International Towing Tank Conference (ITTC).