Uncertainty quantification for a sailing yacht hull, using multi-fidelity kriging

• We simulate the flow around a sailing yacht hull.
• We use multi-fidelity Kriging to combine simulations on different spatial grids.
• This enables us to propagate parameter uncertainty at relatively low computational cost.
• We compare our results with experimental data.
• Based on the experimental data, we estimate the input parameters.

Uncertainty quantification (UQ) for CFD-based ship design can require a large number of simulations, resulting in significant overall computational cost. Presently, we use an existing method, multi-fidelity Kriging, to reduce the number of simulations required for the UQ analysis of the performance of a sailing yacht hull, considering uncertainties in the tank blockage, mass and centre of gravity. We compare the UQ results with experimental values.