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A 1/8.25 scale-model of the U.S. Navy Research Vessel ATHENA was tested inregular head-sea waves to obtain data for validation of computational fluiddynamics (CFD) predictive tools. The experiments were performed in the DavidTaylor Model Basin at the Naval Surface Warfare Center (NSWC). With the modeltowed fixed in head-seas, horizontal and vertical loads on the model wereobtained at two Froude numbers, $F_r=0.25$ and $F_r=0.43$. The model was run attwo conditions of head-sea wavelengths corresponding to $\lambda=2L_o$ and$\lambda=1/2L_o$ with $H/\lambda=0.03$, where $L_o$ is the length of the modeland $H=2 a$ is the wave height. The wave field perturbations induced by thehead-sea waves were quantified from free-surface images generated by a laserlight sheet. Predictions of the horizontal and vertical loads on the model inregular head sea waves were made with the Numerical Flow Analysis (NFA) code.Numerical predictions of the wave-field perturbations were compared with theexperimental data and the correlation coefficients have been computed.

An Integrated Experimental and Computational Investigation into the  Dynamic Loads and Free-surface Wave-Field Perturbations Induced by Head-Sea  Regular Waves on a 1/8.25 Scale-Model of the R/V ATHENA