Validation and verification of numerical model for simulation of the operating principle of the oscillating water column device
DOI:
https://doi.org/10.5902/2179460X87159Keywords:
Computational modeling, Wave energy, Validation, VerificationAbstract
Initially, this work presents the validation of an axisymmetric computational model employing the Air-Methodology for the numerical simulation of a sea wave energy converter into electrical energy of the Oscillating Water Column (OWC) type, through experimental results of turbulent flow over a downward step; a characteristic that resembles the airflow within an OWC device. Subsequently, the model was verified with numerical results produced in a study where turbulent airflow over the downward step was simulated, and the validation of these results was also performed with the experimental data previously used. The model that uses κ−ε standard for turbulence, Enhanced Wall Function as the wall function, and SIMPLE for pressure-velocity coupling, achieved a processing time of approximately 30 min and presented an average Mean Absolute Error (MAE) value of 1.25% during validation. In verification, the MAE was less than 4% for the x-component and less than 1.5% for the y-component.
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