تحليل عددي فرآيند جريان در موتورهاي چهارزمانه

In this article the flow process of four stroke engine is analyzed considering the effect of the movements of the valves. This model is based on improved (KWA) code. In this computer analysis the Navier-Stokes equations with moving boundry is analyzed using (K-e) model The results of the computations shows the flow distribution in combustion chamber as well as exhaust gases. The results shows good agreement with experimental investigation. The applied nature of this work is one of the main advantages in the analysis of internal combustion engines.