Poojitha D. Yapa

OCEAN_CO2 is a three dimensional model and was developed to simulate CO2 gas released from moderate depths. The model can simulate releases from point sources as well no-point sources. During the release of CO2 gas, physico-chemical processes are modeled. These processes include: gas expansion during upward travel due to pressure changes; gas dissolution and its impact on bubble volume; continuous recalculation of bubble buoyant velocity based on the volume and density changes; and tracking the transport and dispersion of dissolved and free gas respectively.

Non-circular nature of the larger bubbles is taken into consideration in calculating the buoyant velocity as well as the dissolution rate. Through the integration of the Advection-Dispersion in equation concentration, pH, and pCO2 in the Ocean. The model has been tested with experimental data and then applied to study the impact in a bay in Japan. In a three dimensional flow domain and the CO2 fate processes, OCEAN_CO2 simulates the time dependent variation of free gas concentration, dissolved gas, pH, and pCO2 in the Ocean. The model has been tested with experimental data and then applied to study the impact in a bay in Japan.