Finite element modeling of an offshore region with restricted flow

In this study, thermal impacts from the operation of the Crystal River Power Station were assessed. The station is located on the Gulf of Mexico and consists of five units, three of which have open cycle cooling systems. The assessment of impacts was performed using a pair of two-dimensional finite elements models. Field data collected during two month-long survey periods were used to develop boundary conditions and information necessary for calibration of the models. The modeling effort was complicated by open boundaries on three sides of the study area and the presence of several long strings of oyster reefs. The oyster reefs cause a flow restriction which is dependent on the water elevation and thus changes throughout the tidal cycle. Following modifications to the models, satisfactory calibration and realistic operational predictions were made.