Modeling of Tidal Current Velocity UsingTELEMAC-2D Software (Case Study: Bushehr Bay)

The tide is an essential information in conducting studies on sedimentation, morphological changes and flooding of coasts, erosion as well as coastal strip management. Due to lack of measurement information in many coastal and marine areas, wave characteristics are estimated using different methods. Marine wave forecasting projects are often performed by numerical models or empirical methods. In the present study, the tidal flow velocity in Bushehr Bay is modeled using the numerical model TELEMAC-2D and the dominant flow direction in the area is analyzed. Model settings include irregular trigonometric grid in x and y with the ratio of one to three from the smallest 30m grid to the largest 810m grid, a time step of 30 seconds, the bed friction law using Stickler Theory 50 m1/2s-1  used. The model ran for one month on 2011/07/12 in the Bushehr Bay. After running the model, the current velocity data are compared with the corresponding measurement data and the TPXO Global Database, the results showed an increase of correlation from 41/86% to 91/41% indicating that the model is suitable for flow rate modeling in Bushehr Bay. At the end, the dominant flow in the northwest is presented.