Investigation into the effect of intake port geometric parameters and blockage on flow coefficient and in-cylinder flow: application to engine port design

The Computational Fluid Dynamics (CFD) method is employed to gain further insight into the characteristics of the in-cylinder ow eld. Comparison between the measured and predicted results of the in-cylinder tumble ow and ow coecient generated by a port-valve-liner assembly, on a steady- ow test bench, is presented, and a reasonably good level of agreement is achieved. A CAD parametric model of port geometry is created to enable variations, practically and quickly. Employing CFD analysis, the relationship between design parameters and port ow characteristics is established. The in uence of new blockage patterns on in-cylinder ow is also studied