Sharif University of Technology Scientia Iranica 1026-3098 21 2 2014 04 01 Investigation into the eect of intake port geometric parameters and blockage on flow coecient and in-cylinder flow: Application to engine port design Investigation into the eect of intake port geometric parameters and blockage on flow coecient and in-cylinder flow: Application to engine port design 438 448 3494 EN A. Mohammadebrahim School of Mechanical Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-9567, Iran Siamak Kazemzadeh Hannani School of Mechanical Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-9567, Iran B. Shafii School of Mechanical Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-9567, Iran Journal Article 2014 05 03 The Computational Fluid Dynamics (CFD) method is employed to gain further insight into the characteristics of the in-cylinder flow field. Comparison between the measured and predicted results of the in-cylinder tumble flow and flow coecient generated by a port-valve-liner assembly, on a steady- flow 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 flow is also studied. https://scientiairanica.sharif.edu/article_3494_20cc6d2898623cf0a9841882fb1a5674.pdf