توسعه مدل دو بعدي متوسط گيري شده در عرض براي شبيه سازي جريان هاي سطح آزاد

Development of a new medical with-averaged model for simulation of free surface flows

In this paper the two dimensional laterally averaged numerical model for unsteady and non-hydrostatic pressure distribution is presented. In this model, not only free-surface with flow pattern and pressure are solved simultaneously at each time step, but also the effect of width variation on water surface elevation can be considered. The model has been applied to simulate many unsteady flow problems involving propagation stokes waves and solitary wave and especially for flow through a venturi flume. The results are in good agreement with both experimental observations and theoretical analysis.