Simple empirical formula for the estimation of the added resistance of ships in waves

What is it about?

The estimation of the added resistance in waves maybe conducted by high fidelity numerical methods and software tools (panel codes and CFD), but the use of easy to use semi-empirical formulas is always valuable as a yardstick and quick initial estimations.

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Why is it important?

The estimation of the added resistance of ships in realistic sea conditions is of importance for ship design and operation, as it affects ship's fuel consumption and toxic gas emissions, in view of the new EEDI regulations