Modeling of tidal currents in Gheshm Canal by using Nasir software

The transient flow patterns in the Gheshm canal is due to tidal fluctuations in two open boundaries of the canal. Due to Variations of water level in the Hormoz strait and the Persian Gulf, there are considerable differences in tidal behavior of two ends of the canal. In this investigation, applications of Nasir software for solving tidal flow patterns with moving boundaries in Gheshm canal is introduced. This software computes water level variation and velocity components in horizontal plane by solving depth averaged from of continuity and momentum equations using cell vertex finite volume method for unstructured triangular mesh. For damping out of numerical oscillations of explicit solution procedure, an artificial viscosity formulation suitable for the triangular unstructured meshes was applied. A wetting and drying model is applied in present work using edge-base algorithm. The results of computer modeling have been compared with data measurements in the domain and demonstrated high performance of the model to simulate tidal currents in Gheshm canal.