A confluence is a natural component in river and channel networks. The incoming flow from the tributary channel causes extensive variation of the flow velocity, flow discharge, turbulent intensity and sediment discharge in the main-channel. In the present paper, numerical model is applied to predict flow pattern and morphological changes at the future. The numerical model was calibrated using available confluence field data and then was applied to a confluence. The objectives of this study are to: evaluate the morphological changes at channel confluence, showing the behavior of the planform confluence morpho-hydro dynamics zones at the future, presenting the cumulative erosion and sediment at the study confluence and the rate of changes for the confluence hydrodynamic zone (CHZ) stagnation zone, separation zone, confluence scour, region of maximum velocity, region of flow recovery, and mixing interface/shear layer.