Failures, Fantasies and Feats in the Theoretical/Numerical Prediction of Ship Performance

Larsson, L., Regnström, B., Broberg, L,. Li, D-Q., Janson, C-E.

Keynote Lecture, 22nd Symposium on Naval Hydrodynamics, Washington DC. 1998.


The status of CFD in hydrodynamics is reviewed. After a brief historical survey a theoretical introduction is given to potential flow panel methods and methods based on the Reynolds-Averaged Navier-Stokes equations. Present capabilities are then discussed, and the attainable accuracy in the prediction of waves, wave resistance, local flow, viscous resistance and propeller effects is assessed. Prospects for improvements, based on present research in grid generation, free surface flows, turbulence modelling, propeller flows.