Validation and verification of numerical model for simulation of the operating principle of the oscillating water column device
Year: 2024
Type: article
Abstract: 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.
Source: Ciência e Natura
Institution: Universidade Federal do Rio Grande
Language: English
Topic: Wave and Wind Energy Systems
Subfield: Ocean Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4408028510