Integrated Modeling of Global and Regional Model in Investigation of Tidal Current in Port of Bushehr Iran

The present study modeled coastal curent patterns in Bushehr Port using a twodimensional model, and compared the results with the measured data to analyse the tidalcurrents. In this regard, hydrodynamic conditions of the Bushehr Port including current velocity, current direction, and sea-level changes were examined using the HD module inMIKE 21 software. For numerical modeling, a non-uniform triangular lattice was studied using two meshing schemes: a coarse general network and a fine regional network. Thelength of each element is variable between 310 and 2400 m in 6 regions. After calibratingthe model, the data of a one year period, 2011, were analyzed . The currrents’ boundary conditions were applied in the regional modeling domain (Bushehr Port) with three openboundaries (Northern border, Southern border, and Western border), and the generalmodeling domain (Persian Gulf) with one open boundary in the Strait of Hormuz and.Regarding this, four main tidal factors of 2 2 1 1 M ,S ,K ,O were considered to predict tidalbehavior in the open boundary. Finally, there was no significant difference between the measured data and the modeling results and the rarely observed errors can be attributed to the insufficient data for defining the input conditions.

کلیدواژه ها:

Two-dimensional modeling ، Tidal currents ، Hydrodynamic module ، MIKE 21 ، Calibration